A. “Use of proton pump inhibitors and risk of hip fracture in relation to dietary and lifestyle factors: a prospective cohort study,” by Hamed Khalili, Edward S. Huang, Brian C. Jacobson, Carlos A. Camargo Jr., Diane Feskanich, and Andrew T. Chan (BMJ 2012;344:e372, Vol. 344, No. 7845, Feb. 25, 2012).
www.bmj.com/content/344/bmj.e372
B. “Understanding recent trends in incidence of invasive breast cancer in Norway: age-period-cohort analysis based on registry data on mammography screening and hormone treatment use,” by Harald Weedon-Fekjær, Kjersti Bakken, Lars J. Vatten, and Steinar Tretli (BMJ 2012;344:e299, Vol. 344, No. 7845, Feb. 25, 2012).