◂
sci
hub

to open science
Gorni, Fabio G.; Andreano, Anita; Ambrogi, Federico; Brambilla, Eugenio; Gagliani, Massimo . (2015). Patient and Clinical Characteristics Associated with Primary Healing of Iatrogenic Perforations after Root Canal Treatment: Results of a Long-term Italian Study. Journal of Endodontics, (), S0099239915010031–. doi:10.1016/j.joen.2015.11.006 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research