KNAPP, P Strabismus. [electronic resource] - Archives of ophthalmology (Chicago, Ill. : 1960) Jun 1962 - 811-26 p. digital Publication Type: Journal Article ISSN: 0003-9950 Standard No.: 10.1001/archopht.1962.00960020811017 doi Subjects--Topical Terms: HumansStrabismus