1. Extraskeletal osteosarcomas in dogs: a retrospective study of 169 cases (1986-1996);Langenbach A,1998
2. Outcome following treatment of soft tissue and visceral extraskeletal osteosarcoma in 33 dogs: 2008-2013;Duffy D,2017
3. Canine extraskeletal osteosarcoma and chondrosarcoma: a clinicopathologic study of 14 cases;Patnaik AK,1990
4. Extraskeletal osteosarcomas in dogs: 14 cases;Kuntz CA,1998
5. Use of alkaline phosphatase staining to differentiate canine osteosarcoma from other vimentin-positive tumors;Barger A,2005