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This is a protocol for a Cochrane Review (Intervention). The objectives are as follows:To assess the e ectiveness and safety of antidepressant drugs in comparison with any other treatment (psychological, psychosocial, or pharmacological), placebo, or treatment as usual for PND.

pub2 (see www.thecochranelibrary. com for information). Cochrane Reviews are regularly updated as new evidence emerges and in response to feedback, and the Cochrane Database of Systematic Reviews should be consulted for the most recent version of the review. We thank the Cochrane Review Group for their support in publishing these reviews.