Association between promoter -1607 polymorphism of MMP1 and lumbar disc disease in Southern Chinese - Song, Y Q; Ho, D W; Karppinen, J; Kao, P Y; Fan, B J; Luk, K D; Yip, S P; Leong, J C; Cheah, K S; Sham, P; Chan, D; Cheung, K M (BMC Med Genet, 2008)