1.
Córdoba R, Escobar LP, Guzmán LL. Factors associated with first trimester period absence from prenatal control in pregnant women from ESE San Sebastian in La Plata, Huila, 2009. RFS [Internet]. 2012 Jan. 9 [cited 2024 Nov. 22];4(1):39-4. Available from: https://journalusco.edu.co/index.php/rfs/article/view/118