A. Roundtree, M. Kallen, M. Lopez-Olivo, B. Kimmel, B. Skidmore, Z. Ortiz, V. Cox, und M. Suarez-Almazor. Journal of clinical epidemiology, 62 (2):
128-37(Februar 2009)5016<m:linebreak></m:linebreak>GR: 5 K24 AR053593/AR/NIAMS NIH HHS/United States; GR: 5 U18 HS016093/HS/AHRQ HHS/United States; JID: 8801383; 2008/01/04 received; 2008/08/15 revised; 2008/08/18 accepted; 2008/11/14 aheadofprint; ppublish;<m:linebreak></m:linebreak>Metaanàlisi.