Comparative study between S-(+)-ketamine–midazolam and fentanyl–droperidol in black-tufted marmosets (Callithrix penicillata) - Lopes, Luiz Fernando Larangeira; Gris, Vanessa Nadine; Ferraro, Mario Antonio; Cortopassi, Silvia Renata Gaido (Brazilian Journal of Veterinary Research and Animal Science, 2022)