Revista de la Facultad de Medicina HumanaPrint version ISSN 1814-5469On-line version ISSN 2308-0531
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CVETKOVIC-VEGA, A et al. Cross-sectional studies. Rev. Fac. Med. Hum. [online]. 2021, vol.21, n.1, pp.179-185. ISSN 1814-5469.