@misc{indiciae84523ff73a5c, title = {The value of elevated second-trimester beta-human chorionic gonadotropin in predicting development of preeclampsia.}, author = {A M Ashour and E S Lieberman and L E Haug and J T Repke}, year = {1997}, doi = {10.1016/s0002-9378(97)70512-x}, url = {https://pubmed.ncbi.nlm.nih.gov/9065195/}, note = {Source identifier: 9065195} }