Echo-biometry assessment of a quadruple pregnancy in a captive capybara - Donoso, Flavia María Pía Montenegro; Pizzutto, Cristiane Schilbach; Contardo, Juan; Hagen, Stefano Carlo Filippo; Sáez, Daniel; Nunes, Fernanda Battistella Passos; Almeida, Adriana Helena de; Assis Neto, Antonio Chaves de (Veterinary Radiology & Ultrasound, 2025)