Fig. 1From: Protocol for a cluster randomised controlled trial of LPG cookstoves compared to usual cooking practices to reduce perinatal mortality and morbidity in rural Bangladesh called Poriborton: the CHANge trialSherpur, the Poriborton study site, in Northern Bangladesh, divided by Unions (main picture). Insert (left): Bangladesh divided by districts with Sherpur (red). Insert (right): the selected sub-districts (red)Back to article page