1) Varlotta GP, Brown MD, Kelsey JL, et alu:uFamilial predisposition for herniation of a lumbar disc in patients who are less than twenty-one years old. J Bone Joint Surg Am 73:124-128,1991
2) Matsui H, Kanamori M, Ishihara H, et alu:uFamilial predisposition for lumbar degenerative disc disease. Spine 23:1029-1034,1998
3) Gunzburg R, Fraser RD, Fraser GAu:uLumbar intervertebral disc prolapse in teenage twins. A case report and review of the literature. J Bone Joint Surg Br 72:914-916,1990
4) Matsui H, Tsuji H, Terahata Nu:uJuvenile lumbar herniated nucleus pulposus in monozygotic twins. Spine 15:1228-1230,1990
5) Sambrook PN, MacGregor AJ, Spector TDu:uGenetic influences on cervical and lumbar disc degeneration. a magnetic resonance imaging study in twins. Arthritis Rheum 42:366-372,1999
6) Kizawa H, Kou I, Iida A, et alu:uAn aspartic acid repeat polymorphism in asporin inhibits chondrogenesis and increases susceptibility to osteoarthritis. Nat Genet 37:138-144,2005
7) Mabuchi A, Nakamura S, Takatori Y, et alu:uFamilial osteoarthritis of the hip joint associated with acetabular dysplasia maps to chromosome 13q. Am J Hum Genet 79:163-168,2006
8) Videman T, Leppavuori J, Kaprio J, et alu:uIntragenic polymorphisms of the vitamin D receptor gene associated with intervertebral disc degeneration. Spine 23:2477-2485,1998
9) Seki S, Kawaguchi Y, Chiba K, et alu:uA functional SNP in CILP, encoding cartilage intermediate layer protein, is associated with susceptibility to lumbar disc disease. Nat Genet 37:607-612,2005
10) Mio F, Chiba K, Hirose Y, et alu:uA functional polymorphism in COL11A1, which encodes the alpha 1 chain of type XI collagen, is associated with susceptibility to lumbar disc herniation. Am J Hum Genet 81:1271-1277,2007