TY - CHAP M1 - Book, Section TI - Prenatal 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 - The borderline between health and disease is less distinctly marked during gestation, and therefore, it accordingly becomes necessary to keep pregnant patients under strict supervision, and to be constantly on the alert for the appearance of untoward symptoms.—J. Whitridge Williams (1903) SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/29 UR - accessmedicine.mhmedical.com/content.aspx?aid=1160772969 ER -