Impact evaluation of different cash-based intervention modalities on child and maternal nutritional status in Sindh Province, Pakistan, at 6 mo and at 1 y: A cluster randomised controlled trial. - Fenn, Bridget; Colbourn, Tim; Dolan, Carmel; Pietzsch, Silke; Sangrasi, Murtaza; Shoham, Jeremy (PLoS Medicine, 2017)