| 1. | Calcium pyrophosphage crystal deposition disease ( sometimes called " pseudogout " ) is not uncommon in persons over the age of 50 , and can lead to acute , subacute , or chronic arthritis of knees , wrists , elbows , shoulders , and ankles
焦磷酸钙结晶沉积病（有时称为“假性痛风” ）在50岁以上人群中并不少见，它能引起膝关节、腕关节、肘关节、肩关节与踝关节的急性、亚急性或慢性关节炎。 |
