1.
Cvetković Vega A, L. Maguiña J, Soto A, Lama-Valdivia J, Correa López LE. Cross-sectional studies: Estudios transversales. Rev.Fac.Med.Hum [Internet]. 2020Dec.16 [cited 2024Apr.30];21(1). Available from: https://revistas.urp.edu.pe/index.php/RFMH/article/view/3069