Uterine volume, menstrual patterns, and contraceptive outcomes in users of the levonorgestrel-releasing intrauterine system: A cohort study with a five-year follow-up - Magalhaes, Jarbas; Ferreira-Filho, Edson Santos; Soares Junior, Jose Maria; Baracat, Edmund Chada (European journal of obstetrics & gynecology and reproductive biology, 2022)