Though most persons with gallstones are asymptomatic, there may be episodes of acute cholecystitis marked by intense right upper quadrant pain.
虽然大多数胆石症病人无临床表现，然而胆囊炎急性发作可致右上腹痛。
The pain of angina is usually not as severe as the intense precordial crushing sensation associated with acute myocardial infraction.
心绞痛性疼痛，通常不如急性心肌梗塞时心前区挤压感觉那样剧烈。
The pain of angina is usually not as severe as the intense precordial crushing sensation associated with acute myocardial infraction.
心绞痛性疼痛，通常不如急性心肌梗塞时心前区挤压感觉那样剧烈。
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