Tapping the flow of information in a rural region: the example of the smallpox eradication program in Bihar, India.
D003256:Community Participation; D003625:Data Collection / Q000379:methods; D006801:Humans; D007194:India; D009313:National Health Programs / Q000458:organization & administration*; D010865:Pilot Projects; D011159:Population Surveillance; D012423:Rural Health; D012899:Smallpox / Q000517:prevention & control*