In: Before We Are Born: Essentials of Embryology and Birth Defects | Clinical manifestations and diagnosis of early pregnancy |
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NCBI: National Center for Biotechnology Information, U | American College of Obstetricians and Gynecologists |
Initial prenatal assessment and first-trimester prenatal care.
23Overview of the etiology and evaluation of vaginal bleeding in pregnant women | Morning sickness: Nausea and vomiting of pregnancy |
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: American College of Obstetricians and Gynecologists; 2015 |