Observations with a mobile unit in urban community health programs. A study in utilization.
D002648:Child; D002662:Child Health Services / Q000706:statistics & numerical data*; D002675:Child, Preschool; D003153:Community Health Services / Q000706:statistics & numerical data*; D006801:Humans; D008952:Mobile Health Units / Q000706:statistics & numerical data*; D009519:New York City