A gene implicated in Spinal Muscular Atrophy showed an association in three populations, but not in Yoruba from Ibadan, Nigeria.

• 一个涉及脊髓性肌萎缩病的基因显示出与三个人群有关联但却没有在伊巴丹、尼日利亚、的优鲁巴人身上发现。