Giuseppe Cannazza; Cinzia Citti; Jenny Wiley; Vidhi Thakkar; Omer S.M. Hasan; Jakob Manthey; Jurgen Rehm; Astrid Otto; Charlotte Probst; Julian Sauer; Jonathon Arnold; Kevin P. Hill; Judith Spahr; Charles V. Pollack; Brock Bakewell (2018). "WHO Expert Committee on Drug – Section 1: Chemistry"(PDF). www.who.int. World Health Organization. Archived from the original(PDF) on November 12, 2020. Retrieved 19 May 2023.
Giuseppe Cannazza; Cinzia Citti; Jenny Wiley; Vidhi Thakkar; Omer S.M. Hasan; Jakob Manthey; Jurgen Rehm; Astrid Otto; Charlotte Probst; Julian Sauer; Jonathon Arnold; Kevin P. Hill; Judith Spahr; Charles V. Pollack; Brock Bakewell (2018). "WHO Expert Committee on Drug – Section 1: Chemistry"(PDF). www.who.int. World Health Organization. Archived from the original(PDF) on November 12, 2020. Retrieved 19 May 2023.