Unsupervised children in motor vehicles.
D000056:Accident Prevention; D000293:Adolescent; D001290:Attitude; D001336:Automobiles; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D008889:Military Personnel; D010290:Parents; D010372:Pediatrics; D011795:Surveys and Questionnaires