Subjects greater than or equal to 18 years old. Subjects diagnosed with any histological type of NHL (including both chemotherapy naïve and pre-treated subjects). Subjects planned to receive a minimum of 3 cycles of CHOP-14 or CHOP-21 with or without Rituximab (for subjects enrolled retrospectively, eligibility should be assessed on the profile at time of planning treatment, where treatment initiates on or after 01 Jan 2005, with specific focus on planned chemotherapy and not outcome or number of delivered cycles) . Before any study-specific procedure, the appropriate written informed consent must be obtained for countries where this is required