Разрокост — разлика између измена

* {{cite journal |first1 = Sean P. |last1 = Donahue |first2 = Edward G. |last2 = Buckley |first3 = Stephen P. |last3 = Christiansen |first4 = Oscar A. |last4 = Cruz |first5 = Linda R. |last5 = Dagi |title = Difficult problems: strabismus |journal = Journal of American Association for Pediatric Ophthalmology and Strabismus (JAAPOS) |volume = 18 |number = 4 |pages = e41 |date = Augustавгуст 2014 |doi = 10.1016/j.jaapos.2014.07.132 }}