The subject is willing and able to abide by the protocol Willing to comply with clinical trial instructions and requirements, including mandatory biopsies Patients willing to comply with study requirements Be willing to comply with clinical trial instructions and requirements. Be willing to comply with clinical trial instructions and requirements, including mandatory biopsies. Patient willing to conform to the study requirements Willing and able to participate in the trial and comply with all trial requirements. Subject is able to understand and willing to comply with protocol requirements and instructions Patients must be able to comply with all protocol requirements Willing and able to comply with study requirements for follow-up Are willing and able to comply with the protocol requirements Subject is able to understand and comply with protocol requirements and instructions Able to comply with the study protocol, in the investigators judgment Be willing to comply with treatment protocol Able to comply with study protocol, in the investigators judgment Patients willing to comply with the clinical trial protocol Subject is able to understand and willing to comply with protocol requirements and instructions Be willing to comply with treatment protocol Be willing to participate in the study and comply with all study requirements Participants must be able to understand and willing to comply with protocol requirements as assessed by the investigator. Subject is, in the investigators opinion, willing and able to comply with the protocol requirements DONOR: Able and willing to comply with the requirements of the protocol Be willing and able to comply with this protocol Subject is able and willing to comply with the requirements of the protocol. Willing and able to comply with all study requirements, including treatment, and attending required assessments The subject is able to understand and comply with protocol requirements, timetables, instructions and protocol-stated restrictions Participant must be willing and comply with the requirements of the protocol Patients willing and able to comply with the study protocol for the duration of the study Able and willing to comply with testing and treatment as outlined in this protocol Patients must be willing and able to give written informed consent prior to any protocol-specific procedures being performed and comply with the protocol requirements for the duration of the study. Subject is willing and able to comply with the protocol for the duration of the study Willing and able to comply with all study requirements, including treatment, timing and nature of required assessments Patients must agree/be able to comply with all protocol specific requirements Able to comply with the study protocol, in the investigators judgment Not willing to follow protocol requirements or to give informed consent Willing and able to comply with all study requirements, including treatment and required assessments Patients must meet the following criteria on screening examination to be eligible to participate in the study; all laboratory assessments should be performed within days of initiation of protocol therapy unless otherwise specified; subject is, in the investigators opinion, willing and able to comply with the protocol requirements Patient is willing and able to participate in the study and comply with all study requirements. Individuals not willing to comply with the procedural requirements of this protocol Individuals not willing to comply with the procedural requirements of this protocol Patients must be willing to comply with effective Antiretroviral Therapy. Be willing to comply with the protocol. Willing and able to participate in the trial and comply with all trial requirements. Participant is willing and able to comply with the requirements of the protocol Willing and able to participate in the trial and comply with all trial requirements Participant is willing and able to comply with the requirements of the protocol Subject is willing and able to comply with the requirements of the protocol. Subject is able to understand and comply with protocol requirements and instructions Willing and able to participate in the trial and comply with all trial requirements. Be willing and able to comply with the protocol The patient must be willing and able to comply with study requirements, remain at the clinic, and be willing and able to return to the clinic for the follow-up evaluation as specified in this protocol during the study period. Able and willing to comply with protocol requirements, in the opinion of the investigator. Is the subject willing and able to abide by the protocol? Must be able to understand and comply with protocol requirements and instructions Patients must be informed of the Celgene Risk Management Program and mandatory registration as well as be willing and able to comply with its requirements Subject is able and willing to comply with the requirements of the protocol. Participant is willing and able to comply with the requirements of the protocol In order to obtain lenalidomide, patients must be registered into the mandatory RevlimidREMS program during the maintenance phase of therapy, and be willing and able to comply with the requirements of RevlimidREMS Able to understand and comply with the requirements of the protocol Willing and able to comply with the protocol guidelines for the duration of the study Willing and able to meet all study requirements Willing and able to do all study requirements Subject is willing and able to comply with the follow-up regimen Willing and able to meet all study requirements Are willing and able to complete study requirements Willing and able to meet all study requirements Able and willing to give informed assent and comply with study requirements Willing and able to meet all study requirements Willing and able to comply with the requirements of the protocol Patient is able to understand and comply with protocol requirements and instructions The subject is willing and able to comply with the study protocol Willing to follow protocol requirements Participant is willing to be randomized and able to comply with the protocol Willing and able to comply with trial protocol and follow-up Willing and able to comply with trial protocol and follow-up Willing and able to comply with trial protocol and follow-up Willing and able to comply with trial protocol and follow-up Subjects provide signed informed consent and confirm that they are able and willing to comply with all protocol requirements. Cohort A Only: Willing to comply with protocol requirements Patient is willing to comply with protocol requirements Willing and able to follow the protocol requirements. Not willing to comply with the procedural requirements of this protocol Women willing to comply with protocol requirements Patients willing to comply with protocol requirements The patient is willing and able to comply with the study protocol Capable and willing to comply with the entire study protocol Patients who are able to comply with the protocol.