Incidence of anemia in pregnancies of 14 to 18 years in the maternity area of the hospital Martin Icaza de Babahoyo. Revista UG [Internet]. 2017 Jan. 9 [cited 2025 Dec. 5];124(1):64-79. Available from: https://revistas.ug.edu.ec/index.php/rug/article/view/243