General principles of biopsy.
D000818:Animals; D001706:Biopsy / Q000009:adverse effects / Q000295:instrumentation / Q000662:veterinary*; D001707:Biopsy, Needle / Q000009:adverse effects / Q000295:instrumentation / Q000662:veterinary; D003584:Cytological Techniques; D006470:Hemorrhage / Q000209:etiology; D008722:Methods; D009339:Needles; D009366:Neoplasm Seeding; D013194:Staining and Labeling