Effect of diversified nursing interventions on the prevention and treatment of postoperative urinary retention of patients with mixed hemorrhoids (多元化护理干预防治混合痔术后尿潴留效果观察)... oleh LI Yuncun (李运翠), HU Hairong (胡海荣), TANG Ling (唐玲), E Haiyan (鄂海燕), QI Wenjing (綦文婧)