1. Morton K, Knight K, Kalman D, Hewlings S: A Prospective Randomized, Double-Blind, Two-Period Crossover Pharmacokinetic Trial Comparing Green Coffee Bean Extract-A Botanically Sourced Caffeine-With a Synthetic USP Control. Clin Pharmacol Drug Dev. 2018 Nov;7(8):871-879. doi: 10.1002/cpdd.451. Epub 2018 Apr 16. [PubMed:29659178 ]