Olk, R. Joseph. Diabetic retinopathy : practical management / R. Joseph Olk, C arol M. Lee. - Philadelphia : Lippincott, c1993. - xi, 191 p. : ill. (some col.) ; 27 cm. Includes bibliographical references and index. ISBN: 0397511671 Subjects--Topical Terms: Diabetic retinopathy. Diabetic Retinopathy -- therapy. Dewey Class. No.: 617.7/3 National Library of Medicine Call No.: WK 835 / Ol48 1993