Kloppers P J, Fehrsen G S
S Afr Med J. 1977 May 21;51(21):745-6.
Phleboliths were sought in pelvic radiographs of some 1 500 patients of whom about half were White and half were Black. A marked difference was found, and many more phleboliths occured in the White group. It may be that the younger group of Blacks exhibit more phleboliths than do the older folk. Phleboliths may be found to serve as a 'marker' for a developing Western pattern of diseases.
在约1500名患者的骨盆X光片中寻找静脉石，其中约一半为白人，一半为黑人。结果发现了显著差异，白人组出现的静脉石更多。可能是较年轻的黑人组比年长的黑人表现出更多的静脉石。静脉石可能被发现是西方疾病发展模式的一个“标志”。
