A U.S. Pharmacopeia (USP) overview of Pan American botanicals used in dietary supplements and herbal medicines oleh Roy Upton, Ignacio Agudelo, Yadira Cabrera, Armando Caceres, Angela Calderón, Fernando Calzada, Rosa Camacho, Fernando da Costa, Cecilia Dobrecky, Roberto Enciso, Marcela Escobar, Mina Fakhary, Edward Fletcher, Quanyin Gao, Olga Lock, Rachel Mata, Mirtha Parada, Wilmer Perera, Luis Miguel Pombo, Eike Reich, Eric Sanchez, Mario Juan Simirgiotis, Christian Sood, Virginie Treyvaud Amiguet, Martha Villar, Ricardo Ghelman, Mariana Cabral Schveitzer, Caio Fábio Schlechta Portella, Adriana Wolffenbüttel, Bettina Ruppelt, Fabiana Souza Frickmann, Janette Gavillan-Suarez, Kristin Allen, Luis Diego Alvarado, Nandakumara Sarma, Robin Marles, Maria Monagas, Mirtha Navarro-Hoyos, Mirtha Navarro-Hoyos