Clarke, M. (2002). Commentary: Searching for trials for systematic reviews: what difference does it make?
Cita Chicago Style (17a ed.)Clarke, M. Commentary: Searching for Trials for Systematic Reviews: What Difference Does It Make? 2002.
Cita MLA (9a ed.)Clarke, M. Commentary: Searching for Trials for Systematic Reviews: What Difference Does It Make? 2002.
Precaución: Estas citas no son 100% exactas.