TY - GEN AU - Breul,Jürgen TI - [Use of GnRH antagonists versus agonists] SN - 1433-0563 PY - 2017///0808 KW - Gonadotropin-Releasing Hormone KW - antagonists & inhibitors KW - Humans N1 - Publication Type: Letter; Comment UR - https://doi.org/10.1007/s00120-016-0194-2 ER -