Authors: Dennis M Black; Ann V Schwartz; Kristine E Ensrud; Jane A Cauley; Silvina Levis; Sara A Quandt; Suzanne Satterfield; Robert B Wallace; Douglas C Bauer; Lisa Palermo; Lois E Wehren; Antonio Lombardi; Arthur C Santora; Steven R Cummings Journal: JAMA Date: 2006-12-27 Impact factor: 56.272