Source:
Annals of internal medicine [Ann Intern Med] 1981 Mar; Vol. 94 (3), pp. 395-400.Publisher: American College of Physicians--American Society of Internal Medicine Country of Publication: United States NLM ID: 0372351 Publication Model: Print
Source:
Pediatrics [Pediatrics] 2002 Jul; Vol. 110 (1 Pt 1), pp. e4.Publisher: American Academy of Pediatrics Country of Publication: United States NLM ID: 0376422 Publication Model: Print Cited Medium: Internet ISSN: