Calcium absorption may be affected after either sleeve gastrectomy or Roux-en-Y gastric bypass in premenopausal women: a 2-y prospective study.
Carrasco F, Basfi-Fer K, Rojas P, Csendes A, Papapietro K, Codoceo J, Inostroza J, Krebs NF, Westcott JL, Miller LV, Ruz M. Calcium absorption may be affected after either sleeve gastrectomy or Roux-en-Y gastric bypass in premenopausal women: a 2-y prospective study. Am J Clin Nutr. 2018 07 01; 108(1):24-32.