MILLS, D.S.; RAMOS, D.; ESTELLES, M.G.; HARGRAVE, C. (2006). A triple blind placebo-controlled investigation into the assessment of the effect of Dog Appeasing Pheromone (DAP) on anxiety related behaviour of problem dogs in the veterinary clinic. Applied Animal Behaviour Science. 98, 114-126.

LEVINE, E. D.; RAMOS, D.; MILLS, D. S. (2007). A prospective study of two self-help CD based desensitization and counter-conditioning programmes with the use of Dog Appeasing Pheromone for the treatment of firework fears in dogs (Canis familiaris). Applied Animal Behaviour Science. 105, 311-329.

RAMOS, D.; MILLS, D. S. (2009). Human directed aggression in Brazilian domestic cats: owner reported prevalence, contexts and risk factors. Journal of Feline Medicine and Surgery 11 (10): 835-841.

DANIEL, A.G.; LUCAS, S.R.; JUNIOR, A.R.; MONTEIRO, P.R.; RAMOS, D.; PIRES, C.G.; SINHORINI, I.L. (2009). Skin fragility syndrome in a cat with cholangiohepatitis and hepatic lipidosis. Journal of Feline Medicine and Surgery. 12:151-155.

RAMOS, D.; ADES, C. (2012). Two-item sentence comprehension by a dog (Canis familiaris). PLOSOne. 7 (2): 1-7.

RAMOS, D.; ARENA, M. N.; RECHE-JUNIOR, A.; DANIEL, A.G.T.; ALBINO, M.V.C; VASCONCELLOS, A. S.; VIAU, P.; OLIVEIRA, C. A. (2012). Factors affecting faecal glucocorticoid levels in domestic cats (Felis catus): a pilot study with single and large multi-cat households. Animal Welfare. 21: 285-291.

RAMOS, D.; DA CRUZ, N.O.; ELLIS, S.L.H.; HERNANDEZ, J.A.E.; RECHE-JUNIOR, A. (2013) Early stage animal hoarders: Are these owners of large numbers of adequately cared for cats? Bulletin of Human-Animal Interaction 1(1): 55-69.

VASCONCELLOS, R.S.; DO AMARAL, H.A.; KUCCI, C.C.; MORETTI, M.; BRUNETTO, M.A.; RAMOS, D. (2013). Disfunção cognitiva em cães idosos: avaliação clínica e estratégias terapêuticas.  Revista Clínica Veterinária. Ano XVII (103): 62-70.

RAMOS, D.; RECHE-JUNIOR, A.; FRAGOSO, P.L.; P, R.; YANASSE, N.K.; GOUVÊA, V.R.; BECK, A.; MILLS, D.S. (2013). Are cats (Felis catus) from multi-cat households more stressed? Evidence from the assessment of faecal glucorticoid metabolites. Physiology & Behaviour (122): 72-75.

RAMOS, D.; RECHE-JUNIOR, A.; MILLS, D. S.; FRAGOSO, P.L.; DANIEL, A.G.T.; FREITAS, M.F.; CORTOPASSI, S.G.; PATRICIO, G. (2009). A closer look at the health of cats showing urinary housesoiling (periuria): a case-control study. Journal of Feline Medicine and Surgery 21(8):772-779.

RAMOS, D. (2019). Common feline problem behaviors: aggression in multicat households. Journal of Feline Medicine and Surgery. 21 (3):1-8.

RAMOS, D.; MILLS, D.S. (2019). Limitations in the learning of verbal content by dogs during the training of OBJECT and ACTION commands. Journal of Veterinary Behavior: Clinical Applications and Research 31:92-99

RAMOS, D.; RECHE-JUNIOR, A.; HIRAI, Y.; MILLS, D. (2019). Feline behaviour problems in Brazil: a review of 155 referral cases. Veterinary Record 186 (16), e.9.

SAVALLI, C.; ALBUQUERQUE, N.; VASCONCELLOS, A.S.; RAMOS, D.; MELLO, F.T.; MILLS, D.S. (2019). Assessment of emotional predisposition in dogs using PANAS (Positive and Negative Activation Scale) and associated relationships in a sample of dogs from Brazil. Scientific Reports 9(1) 1-9.

RAMOS, D.; RECHE-JUNIOR, A.; HENZEL, M; MILLS, D. (2019). Canine behaviour problems in Brazil: a review of 180 referral cases. Veterinary Record 186(18) e.22.

Ramos, D.; Reche-Junior, A.;Fragoso, P.L.;Palme, R.;Handa, P.; Chelini, M.O.; Mills, D.S. (2020) A case-controlled comparison of behavioural arousal levels in urine spraying and latrining cats. Animals  10 (1) 117.

Ramos, D.; Reche-Junior, A.;Brandão, J D P; Arita, D. Y.; Casarini, D.E.; Mills, D.S. (2020) Unreliability of EDTA samples for measuring bioamine neurotransmitter levels in cats. Journal of Feline Medicine and Surgery 23 (2) 190-193.

SAVALLI, C.; ALBUQUERQUE, N.; VASCONCELLOS, A.S.; RAMOS, D.; MELLO, F.T.; SERPELL, J.A (2021). Characteristics associated with behavior problems in Brazilian dogs. Applied Animal Behavior Science 234.

JUNIOR, A.R.; RAMOS, D.; FERREIRA, M.; DA SILVA, L.A.G.P.; HIRAI, Y.; HORTA, P.V. (2021). A case of behavioral changes in a castrated male cat due to a functional adrenocortical adenoma producing testosterone and androstenedione. Journal of Feline Medicine and Surgery. 7 (1).

RAMOS, D.; YAZBEK, K.V.B.; BRITO, A.C.; GEORGETTI, B.; DUTRA, L.M.L; VASCONCELLOS, A.S. (2024). Is It Possible to Mitigate Fear of Fireworks in Dogs? A Study on the Behavioural and Physiological Effects of a Psychoactive Supplement. Animals  14 (7) 1025.