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The chemotherapy regimen (CHOP or CVP or bendamustine) for individual participant was chosen by the site prior to initiation of the study.","id":"FG001","title":"Obinutuzumab+Chemotherapy - Induction Period"},{"description":"The induction period was followed by either a maintenance or observation period for responders or non-responders, respectively. Responders received rituximab monotherapy every 2 months for 2 years during the maintenance period.","id":"FG002","title":"Rituximab+Chemotherapy - Maintenance Period"},{"description":"The induction period was followed by either a maintenance or observation period for responders or non-responders, respectively. Responders received obinutuzumab monotherapy every 2 months for 2 years during the maintenance period.","id":"FG003","title":"Obinutuzumab+Chemotherapy - Maintenance Period"},{"description":"Rituximab+Chemotherapy - Observation: The induction period was followed by either a maintenance or observation period for responders or non-responders, respectively. Non-responders received no protocol specified treatment during the 2-year observation period.","id":"FG004","title":"Rituximab+Chemotherapy - Observation Period"},{"description":"Obinutuzumab+Chemotherapy - Observation: The induction period was followed by either a maintenance or observation period for responders or non-responders, respectively. 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