References
Altemier, W. A.: Presidential address: Crisis and apathy. Ann. Surg.172: 315, 1970.
American Medical News, Aug. 3, 1970.
Castiglioni, A. A History of Medicine 1947. Ed. 2, New York, Knopf, 1192 pp.
Convention Report: American College of Physicians: Health manpower needs, biomedical engineering debated. Mod. Med.38: 36 (June 1) 1970.
de Cosse, J J.: Personal communication to the author.
Elkinton, J. R.: Too much to read (editorial). Ann. Intern. Med.63: 721, 1965.
Funkenstein, D. H. Medical students and surgery, 1970. Arch. Surg. (Chicago).102: 81, 1971.
Geyman, J. P.: Conversion of the general practice residency to family practice. J.A.M.A.215: 1802, 1971.
Haug, J. N., and G. A. Roback: Distribution of physicians, hospitals, and hospital beds in the United States. Department of Survey Research, American Medical Association.
Health Manpower Source Book, Section 14: Medical specialists. U. S. Department of Health, Education and Welfare, 1962.
Hines, M. O.: The role of a department of colon and rectal surgery in hospital practice. J.A.M.A.190: 926, 1964.
How many people to support a specialist? Med. Economics.44: 67 (Oct. 30) 1967.
Jurkiewicz, M. J.: Personal communication to the author.
Lauler, D. P.: Communications in medicine. Mod. Med.38: 99 (June 29) 1970.
McNerney, W. J.: Why does medical care cost so much? N. Engl. J. Med.282: 1458, 1970.
Paxton, H. T.: Which specialties offer the most opportunity? Hosp. Physician. March 1966, p. 33.
Paxton, H. T.: The great doctor shortage: Now the end is in sight. Med. Economics.47: 79 (Dec. 7) 1970.
Press Release. June 26, 1970.
Price, D. J. de S.: Science since Babylon. New Haven, Yale University Press, 1961, 149 pp.
Rosser, C.: The Biennial Mathews Oration: The first proctologist: Life and writings of Joseph MacDowell Mathews. Trans. Am. Proctol. Soc.45: 429, 1946.
Sosman, C. M.: Specialization within roent-genology. Am. J. Roentgenol.44: 645, 1940.
The Graduate Education of Physicians. Report of Citizens Commission on Graduate Medical Education. Commissioned by Americal Medical Association Council on Medical Education, 1966.
The upcoming specialist shortages. Med. Economics.44: 68 (Oct. 30) 1967.
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Read at the Meeting of the American Proctologic Society, Las Vegas, Nevada, May 10 to 13 1971
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Birnbaum, W.D. The sigmoidal curve. Dis Colon Rectum 15, 85–92 (1972). https://doi.org/10.1007/BF02587249
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DOI: https://doi.org/10.1007/BF02587249