In the methods section of this paper by Houston and colleagues (BMJ 2006;332:1064, 6 May), the definition of never smokers with passive smoke exposure should include all never smokers who reported having had passive smoke exposure or (not “and” as mistakenly stated) who had detectable serum cotinine concentrations (1-15 ng/ml).
-
Search BMJ Group
From trainee to consultant, BMJ Group offers doctors around the world tailored information, special events, learning resources and recruitment services at every step along their career path.
... by doctors, for doctors, for patients
We are open for entries!
Online learning
BMJ Learning
High-quality CME / CPD for doctors and other healthcare professionals. BMJ Learning features hundreds of accredited, peer-reviewed learning modules in text, video, and audio formats. Find out more
Courses and Qualifications
BMJ Masterclasses
BMJ Masterclasses, led by experts, help clinicians to use the latest evidence and recent guidelines in practice and meet their CPD/CME requirements. Find out more
Exam Preparation
The leading provider of online exam preparation, helping over 167,000 healthcare professionals to pass their exams. Find out more
Decision support and clinical reference
BMJ Evidence Centre
The BMJ Evidence Centre builds evidence into practice, to support improvements in the consistency and quality of health care.
Informatica Systems
Informatica Systems delivers performance management systems and innovative software solutions to primary care. Learn more
BMJ Quality
The latest news, research, events, opinion and guidance related to quality and safety in health care.
BMJ
The flagship general medical journal, published since 1840, updated daily online, weekly in print and on the iPad.
BMJ Journals
BMJ Journals division publishes over 40 journals across a broad range of specialties.
studentBMJ
An international medical journal written for students by students.
Jobs
BMJ Careers
BMJ Careers makes it easy for you to find the right job with the latest healthcare vacancies, upcoming careers fairs, advice on choosing the right specialty, pay and working conditions.
19-20 October 2012 at the Business Design Centre in Islington, London. Register here
Community
Join the discussions on our community site doc2doc or our social pages
... by doctors, for doctors, for patients
We are open for entries!
PDF
CiteULike
Connotea
Del.icio.us
Digg
Facebook
Mendeley
Reddit
Technorati
Twitter
Stumbleupon
Rapid responses
Latest Responses
Re: Ventilator associated pneumonia
Published 30 May 2012
Re: Restless legs syndrome
Published 30 May 2012
Author's reply
Published 30 May 2012
Re: Full access to trial data holds many benefits and a few pitfalls, conference hears
Published 30 May 2012
Restless Legs Syndrome: Fact or Fiction
Published 30 May 2012
Most responses
Venous thrombosis in users of non-oral hormonal contraception: follow-up study, Denmark 2001-10 (12 responses)
Published 10 May 2012 - 23:32
The psychiatric oligarchs who medicalise normality (9 responses)
Published 2 May 2012 - 15:42
Are doctors justified in taking industrial action in defence of their pensions? No (8 responses)
Published 8 May 2012 - 12:21
Are doctors justified in taking industrial action in defence of their pensions? Yes (8 responses)
Published 8 May 2012 - 12:21
The hardest thing: admitting error (7 responses)
Published 2 May 2012 - 12:27