TY - JOUR AU - Sjöström, L TI - Effects of bariatric surgery on mortality in Swedish obese subjects JO - N Engl J Med VL - 357 PY - 2007 DO - 10.1056/NEJMoa066254 L3 - PubMed-ID: 17715408 SP - 741 EP - 752. N1 - et al. ER -