Safety and efficacy of reduced dosage ketoprofen with or without tramadol for long-term treatment of osteoarthritis in dogs: a randomized clinical trial

Table 4 Endoscopic score used to grade the severity of gastrointestinal mucosal lesions in dogs. Adapted from [35]

Five anatomical locations (esophagus, body of the stomach, pyloric antrum, duodenum and cardia) were individually evaluated and scored, before being summated
^aErosion was defined as a discontinuation of the mucosal epithelium
^bUlcer was defined as a lesion producing a wide discontinuation of the mucosa and having a crate-like centre

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