Vieira Nobre, C. et al. 2022. Efficacy and safety of morphine and methadone as analgesics in a balanced anaesthetic protocol in rabbits. Revista de Investigaciones Veterinarias del Perú. 33, 4 (Aug. 2022), e23358. DOI:https://doi.org/10.15381/rivep.v33i4.23358.