title: A field trial of BCG immunization using the WHO bifurcated needle.
mesh_terms: D000293:Adolescent; D001500:BCG Vaccine / Q000008:administration & dosage* / Q000009:adverse effects; D002648:Child; D006801:Humans; D009339:Needles; D014374:Tuberculin Test / Q000295:instrumentation; D014611:Vaccination / Q000295:instrumentation
chemical_list: D001500:BCG Vaccine