Keep up to date with the latest news and content from BMC Medical Research Methodology and BioMed Central.
Jinhui Ma, Parminder Raina, Joseph Beyene and Lehana Thabane*
Corresponding author: Lehana Thabane email@example.com
BMC Medical Research Methodology 2013, 13:9
Fields marked * are required
BioMed Central Ltd unless otherwise stated. Part of Springer Science+Business Media.