Comments on: Are Randomized Trials Necessary to Advance Epidemiologic Research on Household Air Pollution? http://blogs.washplus.org/iaqupdates/2015/10/are-randomized-trials-necessary-to-advance-epidemiologic-research-on-household-air-pollution/ from the WASHplus Project Sat, 19 Sep 2015 07:30:10 +0000 hourly 1 https://wordpress.org/?v=4.4.4