患者,女性,30岁,因左下腹痛1d就诊。主诉停经52d,阴道不规则出血1周。尿妊娠试验(+),后穹窿穿刺抽出不凝血4mL,诊断为异位妊娠。该患者最可能的病因是( )。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
免费的网站请分享给朋友吧