TY - CHAP M1 - Book, Section TI - Preconceptional Care A1 - Cunningham, F. Gary A1 - Leveno, Kenneth J. A1 - Bloom, Steven L. A1 - Dashe, Jodi S. A1 - Hoffman, Barbara L. A1 - Casey, Brian M. A1 - Spong, Catherine Y. PY - 2018 T2 - Williams Obstetrics, 25e AB - Pregnancy may be associated with certain diseases that existed before the inception of pregnancy. As a rule, all diseases which subject the organism to a considerable strain are much more serious when occurring in a pregnant woman.—J. Whitridge Williams (1903) SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/10/15 UR - accessmedicine.mhmedical.com/content.aspx?aid=1160772770 ER -