Berger, André Middle prechop: Fracturing the middle portion of the nucleus. [electronic resource] - Journal of cataract and refractive surgery Apr 2012 - 564-7 p. digital Publication Type: Journal Article ISSN: 1873-4502 Standard No.: 10.1016/j.jcrs.2012.02.001 doi Subjects--Topical Terms: CapsulorhexisHumansLens Nucleus, Crystalline--surgeryPhacoemulsification--methods