ALPERN, M The after effect of lateral duction testing on subsequent phoria measurements. [electronic resource] - American journal of optometry and archives of American Academy of Optometry Sep 1946 - 442-7 p. digital Publication Type: Journal Article ISSN: 0002-9408 Standard No.: 10.1097/00006324-194610000-00003 doi Subjects--Topical Terms: HumansStrabismus--diagnosisVision Tests