Table 1. Outline of the research problem, 2023.
P	adult patients (over 18 years old)
I/E	diagnosis of sickle cell disease (all genotypes)
C	women without a diagnosis of sickle cell disease
O	laboratory measurement of AMH and/or antral follicle count via transvaginal or transabdominal ultrasound to assess ovarian reserve
S	cohort, case-control, cross-sectional study, and clinical trials