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Nelson, Aaron C.; Mealey, Brian L. . (2020). A randomized controlled trial on the impact of healing time on wound healing following ridge preservation using a 70/30% combination of mineralized and demineralized freeze‐dried bone allograft. Journal of Periodontology, (), JPER.19-0610–. doi:10.1002/JPER.19-0610 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research