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B hagia SM，Slipman CW，Nirschl M，et al .Essen HW，Bravenboer N . Collagen type I alpha1 Sp1 polymorphism，osteoporosis，and intervertebral disc degeneration in older men and women .N oponen-Hietala N，Virtanen I，Karttunen R . Genetic variations in IL6 associat ......