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For more than ten years, bone collagen has also been used to nourish hair and nails
When stratified by comparator groups, the pooled estimate was most favorable in monotherapy trials versus placebo (SMD 2.41, 95% CI 4.43 to 0.39), whereas the add-on designs versus the same background treatment (SMD 0.65, 95% CI 1.85 to 0.55), head-to-head comparisons versus another drug (SMD 0.19, 95% CI 0.84 to 0.45), and add-on designs versus placebo (SMD 0.65, 95% CI 1.35 to 0.06) showed more modest estimates and did not provide clear evidence of a between-group difference overall (p=0.21)
Please use a serum-free medium if you prepare the working solution in a culture medium
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