Methods The polymerase chain reaction restriction fragment length polymorphism was used to detect VDR genotype in 40 patients with osteoporosis and 21 healthy postmenopausal women.

• 方法用聚合酶链反应限制性片段长度多态性技术检测了40例绝经后患骨质疏松症的妇女和21名同龄绝经后无骨质疏松症的妇女的维生素D受体基因多态性。