也许吧，但现在很明显出现了其他的诱因。
Maybe, but there are clearly other types of incentives already available.
没有明显的胃肠道感染诱因，并且既往无胃肠道疾病史。
There was no obvious cause of gastrointestinal infection and history of gut diseases.
没有明显的胃肠道感染诱因，并且既往无胃肠道疾病史。
There was no obvious cause of gastrointestinal infection and history of gut diseases.
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