TY - JOUR AU - Egger, M. AU - Zellweger-Zähner, T. AU - Schneider, M. AU - Junker, C. AU - Lengeler, C. AU - Antes, G. PY - 1997 DA - 1997// TI - Language bias in randomised controlled trials published in English and German JO - Lancet VL - 350 UR - https://doi.org/10.1016/S0140-6736(97)02419-7 DO - 10.1016/S0140-6736(97)02419-7 ID - Egger1997 ER - TY - JOUR AU - Juni, P. AU - Holenstein, F. AU - Sterne, J. AU - Bartlett, C. AU - Egger, M. PY - 2002 DA - 2002// TI - Direction and impact of language bias in meta-analyses of controlled trials: empirical study JO - Int J Epidemiol VL - 31 UR - https://doi.org/10.1093/ije/31.1.115 DO - 10.1093/ije/31.1.115 ID - Juni2002 ER - TY - JOUR AU - Pham, B. AU - Klassen, T. P. AU - Lawson, M. L. AU - Moher, D. PY - 2005 DA - 2005// TI - Language of publication restrictions in systematic reviews gave different results depending on wether the intervention was conventional or complementary JO - J Clin Epidemiol VL - 58 UR - https://doi.org/10.1016/j.jclinepi.2004.08.021 DO - 10.1016/j.jclinepi.2004.08.021 ID - Pham2005 ER - TY - JOUR AU - Moher, D. AU - Pham, B. AU - Klassen, T. P. AU - Schulz, K. F. AU - Berlin, J. A. AU - Jadad, A. R. AU - Liberati, A. PY - 2000 DA - 2000// TI - What contributions do languages other than English make on the results of meta-analyses? JO - J Clin Epidemiol VL - 53 UR - https://doi.org/10.1016/S0895-4356(00)00188-8 DO - 10.1016/S0895-4356(00)00188-8 ID - Moher2000 ER - TY - JOUR AU - McDonald, S. AU - Westby, M. AU - Clarke, M. AU - Lefebvre, C. PY - 2002 DA - 2002// TI - Number and size of randomized trials reported in general health care journals from 1948 to 1997 JO - Int J Epidemiol VL - 31 UR - https://doi.org/10.1093/ije/31.1.125 DO - 10.1093/ije/31.1.125 ID - McDonald2002 ER - TY - JOUR AU - McDonald, S. AU - Lefebvre, C. AU - Antes, G. AU - Galandi, D. AU - Gotzsche, P. AU - Hammarquist, C. AU - Haugh, M. AU - Jensen, K. L. AU - Kleijnen, J. AU - Loep, M. AU - Pistotti, V. AU - Ruther, A. PY - 2002 DA - 2002// TI - The Contribution of Handsearching European General Health Care Journals to The Cochrane Controlled Trials Register JO - Eval Health Prof VL - 25 UR - https://doi.org/10.1177/0163278702025001005 DO - 10.1177/0163278702025001005 ID - McDonald2002 ER - TY - JOUR AU - Thornley, B. AU - Adams, C. PY - 1998 DA - 1998// TI - Content and quality of 2000 controlled trials in schizophrenia over 50 years JO - BMJ VL - 317 UR - https://doi.org/10.1136/bmj.317.7167.1181 DO - 10.1136/bmj.317.7167.1181 ID - Thornley1998 ER - TY - JOUR AU - Dickersin, K. AU - Rennie, D. PY - 2003 DA - 2003// TI - Registering clinical trials JO - JAMA VL - 290 UR - https://doi.org/10.1001/jama.290.4.516 DO - 10.1001/jama.290.4.516 ID - Dickersin2003 ER - TY - JOUR AU - Evans, T. AU - Gülmezoglu, M. AU - Pan, T. PY - 2004 DA - 2004// TI - Registering clinical trials: an essential role for WHO JO - Lancet VL - 363 UR - https://doi.org/10.1016/S0140-6736(04)16136-9 DO - 10.1016/S0140-6736(04)16136-9 ID - Evans2004 ER - TY - JOUR AU - De Angelis, C. AU - Drazen, J. M. AU - Frizelle, F. A. AU - Haug, C. AU - Hoey, J. AU - Horton, R. AU - Kotzin, S. AU - Laine, C. AU - Marusic, A. AU - Overbeke, A. J. AU - Schroeder, T. V. AU - Sox, H. C. AU - Van der Weyden, M. B. PY - 2004 DA - 2004// TI - Clinical Trial Registration: A Statement from the International Committee of Medical Journal Editors JO - N Engl J Med VL - 351 UR - https://doi.org/10.1056/NEJMe048225 DO - 10.1056/NEJMe048225 ID - De Angelis2004 ER - TY - STD TI - The pre-publication history for this paper can be accessed here:http://www.biomedcentral.com/1471-2288/6/30/prepub UR - http://www.biomedcentral.com/1471-2288/6/30/prepub ID - ref11 ER -