Nutrición Hospitalaria On-line version ISSN 1699-5198Print version ISSN 0212-1611
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VILLENA-ESPONERA, M.ª Pilar; MORENO-ROJAS, Rafael; ROMERO-SALDANA, Manuel and MOLINA-RECIO, Guillermo.Validation of a Food Frequency Questionnaire for the indigenous Épera-Siapidara people in Ecuador. Nutr. Hosp. [online]. 2017, vol.34, n.6, pp.1368-1375.
ISSN 1699-5198.