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贲门失弛缓症的原因不明。
The cause of achalasia is unknown.
youdao
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贲门失弛缓症的发病率约为每年每10万1人。
The incidence of achalasia is approximately 1 per 100,000 people per year.
youdao
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这是7月下旬时，他们肯定知道这是贲门失弛缓症。
It was late July when they knew for sure it was achalasia.
youdao
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这是7月下旬时，他们肯定知道这是贲门失弛缓症。
It was late July when they knew for sure it was achalasia.
youdao