短语词组短语cyclic vomiting symdrome 周期性呕吐综合征Cyclic vomiting syndrome 周期性呕吐综合征;周期性呕吐;背景周期性呕吐综合征;又名周期性呕吐cyclic vomiting syndromc 周期性呕吐综合征 返回 cyclic vomiting