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Among the 25 studies included in the qualitative synthesis (16 in the meta-analysis), 15 focused specifically on serum cobalamin changes (reported by baseline and post-treatment means and standard deviations in pg/mL) and 10 reported homocysteine outcomes (means and standard deviations in mmol/L)
Khavinson VKh, Konovalov SS, Yuzhakov VV, Popuchiev VV, Kvetnoi IM
Andrea Harwell M.D., FAAD Dermatologic Surgery 15 years in practice I've always been cautious about recommending skincare products, but the peer-reviewed data behind GHK-Cu is hard to ignore
doi: 10.1371/journal.pone.0023205 39 HennipmanAvan OirschotBASmitsJRijksenGStaalGE
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