Shiono H, Ogino T
J Hand Surg Br. 1984 Jun;9(2):151-2.
The dermatoglyphics of nine Japanese (three males and six females) with triphalangeal thumb were studied. The dermal pattern on the triphalangeal thumb showed the high increased frequency of radial loop pattern (69.2%).
对9名患有三节拇指的日本人（3名男性和6名女性）的皮纹进行了研究。三节拇指上的皮纹显示，桡侧箕形纹的出现频率显著增加（69.2%）。
