PDF] Factors Affecting Initial Beta-HCG Values in Pregnancies Achieved by Assisted Reproductive Techniques | Semantic Scholar
Serum [beta]-hcg levels between 12 to 20 weeks of gestation in prediction of hypertensive disordrers of pregnancy - Document - Gale OneFile: Health and Medicine
A rational diagnostic approach to the “phantom hCG” and other clinical scenarios in which a patient is thought to be pregnant but is not - Oluwafunmilayo Oyatogun, Mandeep Sandhu, Stephanie Barata-Kirby, Erin