de Vries B, Houtman W A
Doc Ophthalmol. 1979 Mar 15;46(2):305-8. doi: 10.1007/BF00142619.
In a group of monozygotic twins, in which at least one of the pair squinted, strabismus was observed in both twins in only about half of the cases. Within the concordant group there was variation in the way in which the anomaly became manifest.
在一组单卵双胞胎中,其中至少有一人斜视,在大约半数的病例中,双胞胎两人都出现了斜视。在一致的病例组中,异常表现的方式存在差异。