Articles British Medical Journal Br Med J 1867; 2 doi: https://doi.org/10.1136/bmj.2.348.186 (Published 31 August 1867) Cite this as: Br Med J 1867;2:186 Article Related content Metrics Responses Peer review Related articles Correction Correction Published: 28 November 1964; Br Med J 2 doi:10.1136/bmj.2.5421.194 Correction Royal College of General Practitioners Published: 31 July 1976; Br Med J 2 doi:10.1136/bmj.2.6030.312 See more Should adults take vitamin D supplements to prevent disease? BMJ November 23, 2016, 355 i6201; DOI: https://doi.org/10.1136/bmj.i6201 High iron levels are associated with risk of gestational diabetes, study finds BMJ November 14, 2016, 355 i6075; DOI: https://doi.org/10.1136/bmj.i6075 NICE calls for wider use of blood tests to diagnose coeliac disease BMJ October 20, 2016, 355 i5660; DOI: https://doi.org/10.1136/bmj.i5660 One in five with bowel cancer diagnosed as emergency had previous “red flag” symptoms BMJ September 28, 2016, 354 i5277; DOI: https://doi.org/10.1136/bmj.i5277 Vitamin D advice seems at odds with new methods BMJ August 23, 2016, 354 i4581; DOI: https://doi.org/10.1136/bmj.i4581