Folate intake and the gut folate transport gene are decreased after roux-en-y gastric bypass (rygb) in severely obese women. (December 2021) - Ferreira, B.D.A.M.; Fonseca, D.; Sala, P.; Machado, N.; Cardinelli, C.; Prudêncio, A.; Torrinhas, R.; Waitzberg, D.