RT Book, Section A1 Hoffman, Barbara L. A1 Schorge, John O. A1 Bradshaw, Karen D. A1 Halvorson, Lisa M. A1 Schaffer, Joseph I. A1 Corton, Marlene M. SR Print(0) ID 1125287906 T1 Evaluation of the Infertile Couple T2 Williams Gynecology, 3e YR 2016 FD 2016 PB McGraw-Hill Education PP New York, NY SN 978-0-07-184908-1 LK obgyn.mhmedical.com/content.aspx?aid=1125287906 RD 2024/04/19 AB Infertility is defined as the inability to conceive after 1 year of unprotected intercourse of reasonable frequency. It can be subdivided into primary infertility, that is, no prior pregnancies, and secondary infertility, referring to infertility following at least one prior conception.