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March 27, 1972

References and Reviews

JAMA. 1972;219(13):1805-1823. doi:10.1001/jama.1972.03190390089042

For members of the Association the Archive-Library Department will provide photocopies of articles. Requests should be addressed "Archive-Library Department, AMA." Periodicals published by the Association are not available for loan, but may be purchased from the Circulation Department. Reprints may be obtained from the authors whose addresses are supplied with the abstracts.