[1] Univ Arizona, Coll Pharm, Dept Pharmacol & Toxicol, Tucson, AZ 85721 USA
[2] Univ Arizona, Coll Agr, Off Arid Lands Studies, Tucson, AZ 85721 USA
[3] Univ Arizona, Dept Management & Informat Syst, Tucson, AZ USA
[4] Univ Arizona, Off Technol Transfer, Tucson, AZ USA
[5] Louisiana State Univ, GWL Hansens Dis Ctr, Baton Rouge, LA 70803 USA
[6] Wyeth Ayerst Res Labs, Pearl River, NY USA
[7] Amer Cyanamid Co, Princeton, NJ 08540 USA
[8] INTA, Bioresources Res Inst, Buenos Aires, DF, Argentina
[9] Natl Univ Patagonia, Comodoro Rivadavia, Chubut, Argentina
[10] Univ Nacl Autonoma Mexico, Inst Biol, Mexico City, DF, Mexico
[11] Univ Nacl Autonoma Mexico, Inst Pharm, Mexico City, DF, Mexico
[12] Catholic Univ Chile, Dept Ecol, Santiago, Chile