School-age children's conceptions of the heart and its function. Part II: Methodology and findings.
D000367:Age Factors; D002648:Child; D003071:Cognition; D005260:Female; D006321:Heart / Q000033:anatomy & histology / Q000502:physiology; D006330:Heart Defects, Congenital / Q000175:diagnosis / Q000523:psychology*; D006801:Humans; D008297:Male; D010038:Otorhinolaryngologic Diseases / Q000523:psychology; D012737:Sex Factors