LaMattina, J. (2019). “Can the record breaking number of FDA new
drug approvals continue?” Forbes. 9 de gener.
https://www.forbes.com/sites/johnlamattina/2019/01/09/can-the-record-breaking-number-of-fda-new-drug-approvals-continue/#3bb0fad4aa83
Light, D.; Warburton, R. (2011). “Demythologizing the high costs of
pharmaceutical research”. BioSocieties 6, 34–50. doi:10.1057/biosoc.2010.40.