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Gabriel Peres;Mayra Ianhez;Tatiana C. F. Polo;Luciana P. F. Abbade;Hélio A. Miot;. (2021). Concerning the heterogeneity of the studies included in meta‐analyses. Comment on: “Effects of hydrolyzed collagen supplementation on skin aging: a systematic review and meta‐analysis” . International Journal of Dermatology, (), –. doi:10.1111/ijd.15748 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research