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Clin Gastroenterol Hepatol 2019;17:322332

Hutchings, H., Ortega, N
Following treatment with GHK or GHK-PEG, the number of cells per ml of media was assessed as previously described and the rate of cell proliferation was expressed as fold control and compared between treated and non-treated cells using analysis of variance (ANOVA)

Mine goes into the muscle at the top of my arm

M., Knoll, J