John Hilton from the Cochrane Editorial Unit introduces the March 2013 round-up of what's new on The Cochrane Library. Included in this round-up: topical treatments for psoriasis; withdrawing antipsychotic drugs in people with dementia; using prebiotics in infant formula; the use of helicopters in emergency medical services; patient-centred outcomes research; and evidence-based interventions for cutaneous leishmaniasis
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