Letters Validity of Canadian studies BMJ 2004; 328 doi: https://doi.org/10.1136/bmj.328.7437.465-c (Published 19 February 2004) Cite this as: BMJ 2004;328:465 Article Related content Metrics Responses Peer review Related articles News Three journals raise doubts on validity of Canadian studies Published: 09 January 2004; BMJ 328 doi:10.1136/bmj.328.7431.67 Letter Validity of Canadian studies Published: 19 February 2004; BMJ 328 doi:10.1136/bmj.328.7437.465-a See more Constitutional symptoms in a young person BMJ December 07, 2016, 355 i5781; DOI: https://doi.org/10.1136/bmj.i5781 What it feels like to be an interesting teaching opportunity BMJ December 07, 2016, 355 i6190; DOI: https://doi.org/10.1136/bmj.i6190 Author’s reply to Dangoor and colleagues BMJ December 05, 2016, 355 i6508; DOI: https://doi.org/10.1136/bmj.i6508 Time for guidelines on safety netting? BMJ December 05, 2016, 355 i6411; DOI: https://doi.org/10.1136/bmj.i6411 The BMJ Christmas appeal 2016-7: Orbis, the sight savers BMJ December 01, 2016, 355 i6425; DOI: https://doi.org/10.1136/bmj.i6425