Tondapu, P. and Provost, D. and Adams-Huet, B. and Sims, T. and Chang, C. and Sakhaee, K. Comparison of the Absorption of Calcium Carbonate and Calcium Citrate after Roux-en-Y Gastric Bypass. Obesity Surgery. June 2009, 19 (9): 1256–1261. PMID 19437082. doi:10.1007/s11695-009-9850-6.
Tondapu, P. and Provost, D. and Adams-Huet, B. and Sims, T. and Chang, C. and Sakhaee, K. Comparison of the Absorption of Calcium Carbonate and Calcium Citrate after Roux-en-Y Gastric Bypass. Obesity Surgery. June 2009, 19 (9): 1256–1261. PMID 19437082. doi:10.1007/s11695-009-9850-6.