An Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0 or 1. Eastern Cooperative Oncology Group (ECOG) performance status ? 3 for subjects aged > 16 years; Lansky score ? 20 for subjects from birth to 16 years Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0, 1, or 2 Must have Eastern Cooperative Oncology Group (ECOG) performance status score of 0, 1, or 2. Must have an Eastern Cooperative Oncology Group (ECOG) performance status score 0, 1, or 2 Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0 or 1. Has an Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0 or 1. Eastern Cooperative Oncology Group Performance Status (ECOG PS) score of 0, 1, or 2 (For patients enrolling in the atezolizumab arm, ECOG score must be documented within 7 days prior to first treatment.) Must have Eastern Cooperative Oncology Group (ECOG) performance status score of 0, 1, or 2. Eastern Cooperative Oncology Group (ECOG) performance status score of 0–2 Eastern Cooperative Oncology Group (ECOG) performance status score of 0, 1, or 2 Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1 Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1 Eastern Cooperative Group ECOG) Performance Status score of 0 or 1. Eastern Cooperative Oncology Group (ECOG) performance status score (0 and 1) ECOG (Eastern Cooperative Oncology Group) performance status score of 0 – 2 Eastern Cooperative Oncology Group (ECOG) performance status score of 0, 1, or 2 An Eastern Cooperative Oncology Grou (ECOG) performance status score of 0, 1, or 2. ECOG (Eastern Cooperative Oncology Group) performance status score of 0 – 2 Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1 Eastern Cooperative Oncology Group (ECOG) performance status score 0-1 Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0 or 1 Eastern Cooperative Oncology Group (ECOG) performance status score =< 2. Patients must have Eastern Cooperative Oncology Group (ECOG) performance status score of =< 2 Eastern Cooperative Oncology Group (ECOG) performance status score less than or equal to ( 16 years; Lansky score ? 20 for subjects from birth to 16 years Eastern Cooperative Group (ECOG) status score of <=2. Eastern Cooperative Oncology Group (ECOG) performance status score of 0, 1, or 2 Eastern Cooperative Oncology Group (ECOG) performance status score of 0-2 Eastern Cooperative Oncology Group (ECOG) performance status score of =< 2 Adult patients must have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1; pediatric patients must have Lansky score >= 60% Patients who have an Eastern Cooperative Oncology Group (ECOG) performance status score greater than 2 at time of recruitment Eastern Cooperative Oncology Group (ECOG) Performance status score of 0 to 1 Patient must have an Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1 Patients must have Eastern Cooperative Oncology Group (ECOG) performance status score of =< 2 Patients with Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1 Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1 Eastern Cooperative Oncology Group (ECOG) performance status score of 0 to =< 2 Has an Eastern Cooperative Oncology Group (ECOG) performance status score of 0 to 1 within 3 days prior to the first dose of study treatment. An Eastern Cooperative Oncology Group (ECOG) performance status score of 0, 1, or 2 is required Eastern Co-operative Oncology Group (ECOG) performance status score of 0, 1, or 2 Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1. Has an Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1. Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1