Bernard P, Ardouin P, Fontaine G
Arch Fr Pediatr. 1976 Aug-Sep;33(7):645-52.
A study of scalp hair patterns in 503 healthy patterns in 503 healthy neonates (260 boys and 243 girls) of more than 36 weeks gestation produced the following observations: 1.--A single whorl situated to the right of the midline in a clockwise rotation is the most frequent pattern. 2.--In 5.96% of cases there is a pattern not previously identified which we have called triradius and which is characterised by the arrangement of three locks of hair without a clear clockwise rotation. 3.--75.4% of the patterns, whatever their type, are located 2 to 4 cms from the posterior fontanelle. 4.--The percentage of whorls, double whorls, triradii and their position (right, left of midline) are significantly different according to sex. 5.--By contrast there is no significant racial difference in these parameters.
一项针对503名孕龄超过36周的健康新生儿（260名男婴和243名女婴）头皮毛发形态的研究得出了以下观察结果：1. 位于中线右侧、呈顺时针旋转的单个发旋是最常见的形态。2. 在5.96%的病例中，存在一种此前未被识别的形态，我们称之为三叉点，其特征是三束头发的排列方式，且无明显的顺时针旋转。3. 无论形态类型如何，75.4%的形态位于距后囟2至4厘米处。4. 发旋、双发旋、三叉点的百分比及其位置（中线右侧、左侧）在性别上存在显著差异。5. 相比之下，这些参数在种族上没有显著差异。
