Sangha, Shivani, et al. “Specificity and Sensitivity of Cytological Techniques for Rapid Diagnosis of Neoplastic and Non-Neoplastic Lesions of Canine Mammary Gland”. Brazilian Journal of Veterinary Pathology, vol. 4, no. 1, Mar. 2011, pp. 13-22, https://doi.org/10.24070/bjvp.1983-0246.004003.