BMJ : British medical journal
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Review Meta Analysis Comparative Study
Chemoprevention of colorectal cancer in individuals with previous colorectal neoplasia: systematic review and network meta-analysis.
To assess the comparative efficacy and safety of candidate agents (low and high dose aspirin, non-aspirin non-steroidal anti-inflammatory drugs (NSAIDs), calcium, vitamin D, folic acid, alone or in combination) for prevention of advanced metachronous neoplasia (that is, occurring at different times after resection of initial neoplasia) in individuals with previous colorectal neoplasia, through a systematic review and network meta-analysis. ⋯ PROSPERO (CRD42015029598).