sci
hub

to open science
Craig, E. L.; Zhao, B.; Cui, J. Z.; Novalen, M.; Miksys, S.; Tyndale, R. F. . (2014). Nicotine Pharmacokinetics in Rats Is Altered as a Function of Age, Impacting the Interpretation of Animal Model Data. Drug Metabolism and Disposition, 42(9), 1447–1455. doi:10.1124/dmd.114.058719 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research