Chapman, Sarah Louise, et al. “Diagnosis and Management of Lobular Capillary Haemangioma (pyogenic Granuloma) in an Adult Female Lactating Bonobo (Pan Paniscus)”. Journal of Zoo and Aquarium Research, vol. 5, no. 1, Jan. 2017, pp. 71-75, doi:10.19227/jzar.v5i1.205.