Title:
JAMA: The Journal of the American Medical Association
Publisher:
American Medical Association (AMA)
ISSN
(Print):
00987484
ISSN
(Electronic):
15383598
Publication date
(Print):
June
1993
Volume: 269
Issue: 23
Pages: 3015-3023
Article
DOI: 10.1001/jama.269.23.3015
SO-VID: 47197721-f2ec-468c-8491-f6fa8c63988a