Willingness to return to enrolling institution for follow-up during the active monitoring phase (that is, the active treatment and observation portion) of the study); patients who have been formally transferred to another active and approved site participating in this study would not need to return to the enrolling institution for this purpose Willingness to return to Mayo Clinic for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up or have a local physician willing to submit response and outcome data; Note: any and all therapy, potentially in its entirety, may be conducted outside of the Mayo Clinic Must be willing to return to Mayo Clinic enrolling institution for follow-up. Willingness to return to enrolling institution for follow-up Willingness to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willingness to return to Mayo Clinic Rochester or another participating institution for follow-up; patients who are randomized to Arm B (cytotoxic chemotherapy) may receive chemotherapy at any oncology clinic able to provide the protocol-directed therapy and willing to send laboratory data to the participating institution; however, patients must be willing to return to the participating institution every two months for evaluation; patients who are randomized to Arm A must be willing to receive all treatment and follow-up at a participating institution Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study)\r\n* Note: during the Active Monitoring Phase of a study (i.e., active treatment and observation), participants must be willing to return to the consenting institution for follow-up Willing to return to the enrolling institution for follow-up (during the Active Monitoring Phase of the study); Note: during the Active Monitoring Phase of a study (i.e., active treatment and observation), participants must be willing to return to the consenting institution for follow-up Willing to return to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study) Willing to return to the enrolling institution for follow-up (during active treatment and active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study) Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study) Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up Willing to return to enrolling institution for follow-up during active monitoring phase of the study Willing to return to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study) Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study)\r\n* Note: During the active monitoring phase of a study (i.e., active treatment and observation), participants must be willing to return to the consenting institution for follow-up Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study); Note: during the Active Monitoring Phase of a study (i.e., active treatment and observation), participants must be willing to return to the consenting institution for follow-up Willing to return to enrolling institution for follow-up for a minimum of year Willingness to return to Mayo Clinic in Rochester, Minnesota for follow-up Willing to return to enrolling institution for follow-up during the Active Monitoring phase of the study\r\n* Note: the Active Monitoring phase of a study includes active treatment and observation Willing to return to the enrolling institution for follow-up (during active treatment and active monitoring phase of the study) Patient is willing to undergo treatment and monitoring at the enrolling institution Willingness to return to Mayo Clinic in Rochester, Minnesota for follow-up Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study)\r\n* Note: During the active monitoring phase of a study (i.e., active treatment and observation), participants must be willing to return to the consenting institution for follow-up Willing to return to enrolling institution for follow-up during the active treatment; event monitoring following completion of therapy may occur outside the enrolling institution Willing to return to enrolling institution for follow-up Willingness to return to Mayo Clinic Rochester for follow-up Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study [i.e. active treatment and observation]) Willing to return to enrolling institution for follow-up Willing to return to Mayo Clinic for follow-up Willingness to return to the Mayo Clinic enrolling institution for follow-up Willing to return to Mayo Clinic Rochester for follow-up Willing to return to Mayo Clinic enrolling institution for follow-up Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study) Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study)\r\n* Note: during the Active Monitoring Phase of a study (i.e., active treatment and observation), participants must be willing to return to the consenting institution for follow-up Willing to return to enrolling institution for follow-up Willingness to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study) Willing to return to Mayo Clinic enrolling institution for follow-up Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willingness to return to enrolling institution for follow-up Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to Mayo Clinic in Rochester, Minnesota for follow-up Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study)\r\n* Note: During the active monitoring phase of a study (i.e., active treatment and observation), participants must be willing to return to the consenting institution for follow-up Willing to return to enrolling institution for follow-up (during the treatment and observation phases of the study) Willing to return to enrolling institution for follow-up Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study)\r\n* Note: during the active monitoring phase of a study (i.e., active treatment and observation), participants must be willing to return to the consenting institution for follow-up Willingness to return to Mayo Clinic enrolling institution for follow-up ARM A: Willingness to return to Mayo Clinic in Arizona for follow-up ARM B: Willingness to return to Mayo Clinic in Arizona for follow-up Willingness to return to Mayo Clinic Rochester for follow up Willingness to return to enrolling institution for follow up Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to Mayo clinic for follow up Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up - weeks after treatment discontinuation Willing to return to Mayo Clinic for follow up Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to Mayo Clinic for follow up Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (active monitoring phase of the study); Note: During the active monitoring phase of a study (i.e., active treatment), participants must be willing to return to the consenting institution for follow-up Willingness to return to Mayo Clinic Rochester for follow-up Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willingness to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing and able to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study); Note: During the Active Monitoring Phase of a study (i.e., active treatment and observation), participants must be willing and able to return to the consenting institution for follow-up Willing to return to consenting Mayo Clinic (Mayo Clinics campus in Rochester), for follow-up during the Active Monitoring Phase of the study Willingness to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up Willing to return to consenting institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willingness to return to Mayo Clinic Rochester for follow-up Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study); Note: during the Active Monitoring Phase of a study (i.e., active treatment and observation), participants must be willing to return to the consenting institution for follow-up Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study) Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willingness to return to Mayo Clinic Rochester for follow-up appointments Willing to return to Mayo Clinic Rochester for follow-up Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willingness to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to Mayo Clinic Rochester, Mayo Clinic Arizona, Mayo Clinic Florida for treatment\r\n* Note: During the active monitoring phase of a study (i.e., active treatment and observation), participants must be willing to return to the consenting institution for follow-up Willing to return to Academic and Community Cancer Research United (ACCRU) enrolling institution for follow-up Willing to return to consenting Mayo Clinic institution for follow-up during the Active Monitoring Phase of the study; Note: during the Active Monitoring Phase of a study (i.e., active treatment and observation), participants must be willing to return to the consenting institution for follow-up Willingness to return to Mayo Clinic Rochester for follow-up, except for some appointments that can be made with the local physician Willingness to return to Mayo Clinic Willingness to return to Mayo Clinic Rochester for follow-up Willing to return to Mayo Clinic, Rochester during the observation phase Willingness to return to a lymphoma Specialized Program of Research Excellence (SPORE) enrolling institution for follow-up Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willingness to return to Mayo Clinic for follow up Willing to return to Mayo Clinic enrolling institution for follow-up Willing to return to consenting institution for follow-up during the study Willing to return to enrolling institution for follow-up Willing to return to enrolling institution (Mayo Clinic in Arizona) for follow-up and all study treatments Willing to return to Alliance enrolling institution for follow-up Willingness to return to the Alliance enrolling institution for follow-up Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study) Willingness to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study)\r\n* Note: during the active monitoring phase of a study (i.e., active treatment and observation), participants must be willing to return to the consenting institution for follow-up Willing to return to an Academic and Community Cancer Research United (ACCRU) enrolling institution for follow-up (i.e., active monitoring, which includes active treatment and observation) Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study) After the week-long study treatment, participants must be willing to return to the enrolling institution for a follow-up visit Willing to return to enrolling institution for follow-up of the study and optional crossover (if applicable) Willing to return to an Alliance enrolling institution for follow-up Willing to work with the enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study) Willingness to return to the enrolling institution for follow-up Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study) Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study)\r\n* Note: During the Active Monitoring Phase of a study (i.e., active treatment and observation), participants must be willing to return to the consenting institution for follow-up Willing to return to enrolling institution for follow-up during the Active Monitoring Phase (the active treatment and observation portions) of the study; patients are encouraged to return to the enrolling institution; however, patients may receive radiation therapy at a different institution other than the enrolling institution Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study)\r\n* Note: During the active monitoring phase of a study (i.e., active treatment and observation), participants must be willing to return to the consenting institution for follow-up Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study)\r\n* Note: during the active monitoring phase of a study (i.e., active treatment and observation), participants must be willing to return to the consenting institution for follow-up