TY - JOUR T1 - Persistent mild increase of human chorionic gonadotropin levels in a 31-year-old woman after spontaneous abortion JF - Canadian Medical Association Journal JO - CMAJ SP - E504 LP - E508 DO - 10.1503/cmaj.151481 VL - 188 IS - 17-18 AU - Jianing Chen AU - Sheri-Lee Samson AU - James Bentley AU - Yu Chen Y1 - 2016/12/06 UR - http://www.cmaj.ca/content/188/17-18/E504.abstract ER -