Authors: I Heijnsbroek; F M Helmerhorst; A F van den Berg-Helder; K J van der Zwan; N Naaktgeboren; M J Keirse Journal: Eur J Obstet Gynecol Reprod Biol Date: 1995-04 Impact factor: 2.435
Authors: Loretta Camarano; Abbey Alkon; Robert D Nachtigall; Michael Schembri; Sandra Weiss; Mary S Croughan Journal: Fertil Steril Date: 2012-05-24 Impact factor: 7.329