1.
Sitompul YY, Nainggolan WM, O’Hagan B. A case of acquired idiopathic megaoesophagus in a dog: the use of sildenafil as treatment. TJVM [Internet]. 2021 Aug. 27 [cited 2022 Jul. 1];51(4):779-82. Available from: https://he01.tci-thaijo.org/index.php/tjvm/article/view/253036