Rigors of research: a different nursing demand.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006331:Heart Diseases / Q000209:etiology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009743:Nursing, Practical; D010371:Pediatric Nursing; D012106:Research