TY - RPRT TI - Human chorionic gonadotropin-beta gene expression in first trimester placenta. AU - A K Miller-Lindholm AU - C J LaBenz AU - J Ramey AU - E Bedows AU - R W Ruddon PY - 1997 DO - 10.1210/endo.138.12.5618 UR - https://pubmed.ncbi.nlm.nih.gov/9389532/ ID - 9389532 ER -