MORGAN, M W The direction of visual lines when fusion is broken as induction tests. [electronic resource] - American journal of optometry and archives of American Academy of Optometry Jan 1947 - 8-12 p. digital Publication Type: Journal Article ISSN: 0002-9408 Standard No.: 10.1097/00006324-194701000-00002 doi Subjects--Topical Terms: HumansVision Tests