Handwashing to prevent diarrhea in day-care centers.
Black RE, Dykes AC, Anderson KE, Wells JG, Sinclair SP, Gary GW Jr, Hatch MH, Gangarosa EJ.
Black RE, et al. Among authors: hatch mh.
Am J Epidemiol. 1981 Apr;113(4):445-51. doi: 10.1093/oxfordjournals.aje.a113112.
Am J Epidemiol. 1981.
PMID: 7211827
Clinical Trial.