International, multicentre, placebo-controlled study to evaluate the effectiveness of ondansetron vs. metoclopramide in the prevention of post-operative nausea and vomiting.
Morris RW, Aune H, Feiss P, Hanson A, Hasselstrøm L, Maltby JR, Rocke DA, Rozenberg B, Rust M, Cohen LA. Eur J Anaesthesiol. 1998 Jan; 15(1):69-79.