Mohammad Eghbal Heidari1. 1. Students' Scientific Research center, Faculty of Nursing Midwifery, Tehran University of Medical Sciences, Tehran, Iran. mohammad.eghbal.heydari@gmail.com.
Authors: D F Stroup; J A Berlin; S C Morton; I Olkin; G D Williamson; D Rennie; D Moher; B J Becker; T A Sipe; S B Thacker Journal: JAMA Date: 2000-04-19 Impact factor: 56.272