Olanzapine as a prophylactic antiemetic for preventing postoperative nausea and vomiting after general anesthesia: A systematic review and meta-analysis Thiago Ramos Grigio; Hans Timmerman; Angela Maria Sousa; André Paul Wolff;

Melatonin and the cardiovascular system in animals: systematic review and meta-analysis Eduardo Carvalho de Arruda Veiga; Ricardo dos Santos Simões; Leonardo L. Caviola; Luiz Carlos Abreu; Ricardo Carvalho Cavalli; José Cipolla-Neto; Edmund Chada Baracat; José Maria Soares;

Medical students with performance difficulties need wide support: Initial results of an academic tutoring program Patrícia Lacerda Bellodi; Marisa Dolhnikoff;