TY - CHAP M1 - Book, Section TI - Chapter 77. First Trimester Obstetrical Ultrasound A1 - Usatine, Richard P. A1 - Smith, Mindy A. A1 - Chumley, Heidi S. A1 - Mayeaux, E.J. Y1 - 2013 N1 - T2 - The Color Atlas of Family Medicine, 2e AB - A 22-year-old woman presents with no menstrual period for approximately 2 months (she has irregular menses.) She is complaining of morning sickness but is otherwise feeling well. A urine pregnancy test confirms she is pregnant. Figure 77-1 shows a fetus of 9 weeks estimated gestational age (EGA). SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/28 UR - accessmedicine.mhmedical.com/content.aspx?aid=57675072 ER -