1. World cancer report 2014;McGuire;Geneva, Switzerland: World Health Organization, international agency for research on cancer,2016
2. How to improve R&D productivity: the pharmaceutical industry's grand challenge;Paul,2010
3. Estimating the cost of new drug development: is it really $802 million?;Adams,2006
4. Drug repositioning: a brief overview;Jourdan;J. Pharm. Pharmacol.,2020