Emery, J Advertising: why, what, and how? [electronic resource] - Journal of cataract and refractive surgery May 1989 - 251-2 p. digital Publication Type: Editorial ISSN: 0886-3350 Standard No.: 10.1016/s0886-3350(89)80080-x doi Subjects--Topical Terms: Advertising--trendsOphthalmology