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George McDonald Church studied DNA from living and from extinct species in the US during the twentieth and twenty-first centuries. Church helped to…
DNA SequenceNucleotide sequenceGenesGenomesGeneticsAmenorrhea is considered a type of abnormal menstrual bleeding characterized by the unexpected absence of menstrual bleeding, lasting three months or…
Amenorrhea, PrimaryMenstruation disordersMenstrual CyclePolycystic ovary syndromeBirth ControlIn 2011, fetal researcher Vivette Glover published “Annual Research Review: Prenatal Stress and the Origins of Psychopathology: An Evolutionary…
LiteratureStress in adolescenceStress in youthPsychological StressPregnancyAdvanced Cell Technology (ACT), a stem cell biotechnology company in Worcester, Massachusetts, showed the potential for cloning to contribute to…
Cell nuclei--TransplantationCloningGaurAdvanced Cell Technology (Firm)EmbryosThe copper intrauterine device, or IUD, is a long-term, reversible contraceptive first introduced by Howard Tatum and Jamie Zipper in 1967. Health…
ContraceptivesCopper intrauterine contraceptivesDalkon Shield (Intrauterine contraceptive)Levonorgestrel intrauterine contraceptivesNorgestrelIn the 1964 article, “Pelvic Scoring for Elective Induction,” obstetrician Edward Bishop describes his method to determine whether a doctor should…
LiteratureBishop, Edward H.ChildbirthLabor, Induced (Obstetrics)ObstetricsOn 1 February 1998, David T. Helm, Sara Miranda, and Naomi Angoff Chedd published “Prenatal Diagnosis of Down Syndrome: Mothers’ Reflections on…
Down syndromeCongenital AbnormalitiesGenetic disorders in pregnancygenetic testingAmniocentesisIn “The Social and Psychological Impact of Endometriosis on Women’s Lives: A Critical Narrative Review,” hereafter “Social and Psychological Impact…
LiteratureEndometriosisGynecologic pathologyUrogynecologyGynecologic SurgeryJane Eliot Sewell presented “Cesarean Section--A Brief History” in 1993 as a brochure in the National Library of Medicine’s exhibit on the history of…
Cesarean SectionAbdominal DeliveryMidwivesRicketsAnesthesiaTelomerase is an enzyme that regulates the lengths of telomeres in the cells of many organisms, and in humans it begins to function int the early…
TelomeraseTelomereDNAMolecular BiologySomatic embryogenesis