Search result
A total of 333 relevant publications on PubMed and other databases were identified. 68 were removed because of duplication, and 224 were removed based on above-mentioned inclusion/exclusion criteria. 23 publications did not report clinical signs, and four were excluded due to overlapped cases 8,9,16,17. Finally, 14 articles were included for analysis 10,11,13,18-28. Fig. 1 is the study selection flowchart. Data from all eligible studies were obtained from published manuscripts.