00825cam a22002651 4500 sg 44000248 DLC 20260227112744.0 770809s1944 xx 000 0 eng c sg 44000248 (OCoLC)3174666 U. S. Surg. gen. off. Libr. OC OCoLC DLC premarc R737 .R7 610.7 Rosen, George, 1910- The specialization of medicine with particular reference to ophthalmology, by George Rosen. New York, Froben Press, 1944. 4 p. l., 94 p. 23 cm. Thesis (Ph. D.)--Columbia university, 1944. Vita. "Notes" (bibliographical): p. 83-92. Medicine Specialties and specialists. Ophthalmology. 90469 90469