Skip to main content
Subscribe
Log In
More
Log in via Institution
Log in via OpenAthens
Log in using your username and password
For personal accounts OR managers of institutional accounts
Username
*
Password
*
Forgot your log in details?
Register a new account?
Forgot
your user name or password?
Basket
Search
More
Search for this keyword
Advanced search
Latest content
Current issue
Archive
Authors
About
Search for this keyword
Advanced search
Close
More
Main menu
Latest content
Current issue
Archive
Authors
About
Subscribe
Log in
More
Log in via Institution
Log in via OpenAthens
Log in using your username and password
For personal accounts OR managers of institutional accounts
Username
*
Password
*
Forgot your log in details?
Register a new account?
Forgot
your user name or password?
BMJ Journals
You are here
Home
Archive
Volume 51, Issue 1
Proof in observational medicine.
Email alerts
Article metrics
Article menu
Article
Text
Article
info
Citation
Tools
Share
Rapid Responses
Article
metrics
Alerts
PDF
Research Article
Proof in observational medicine.
Online download statistics by month:
Online download statistics by month: November 2008 to January 2024
Abstract
Full
Pdf
Nov 2008
0
0
1
Jan 2009
0
0
1
May 2009
0
0
1
Jun 2009
0
0
3
Jul 2009
0
0
3
Aug 2009
0
0
2
Sep 2009
0
0
10
Oct 2009
0
0
1
Nov 2009
0
0
4
Dec 2009
0
0
1
Jan 2010
0
0
3
Feb 2010
0
0
1
Mar 2010
0
0
2
Apr 2010
0
0
2
May 2010
0
0
1
Jun 2010
0
0
2
Jul 2010
0
0
6
Aug 2010
0
0
2
Nov 2010
0
0
2
Jan 2011
0
0
1
Mar 2011
0
0
1
May 2011
0
0
1
Jul 2011
0
0
1
Aug 2011
0
0
1
Sep 2011
0
0
2
Dec 2011
0
0
2
Jan 2012
0
0
4
Feb 2012
0
0
2
Mar 2012
0
0
2
May 2012
0
0
1
Jun 2012
0
0
1
Aug 2012
0
0
3
Sep 2012
0
0
2
Oct 2012
0
0
1
Dec 2012
0
0
3
Jan 2013
0
0
3
Feb 2013
0
0
4
Mar 2013
0
0
4
Apr 2013
0
0
3
May 2013
0
0
6
Jul 2013
0
0
3
Sep 2013
0
0
1
Dec 2013
0
0
2
Jan 2014
0
0
1
Mar 2014
0
0
1
Apr 2014
0
0
3
May 2014
0
0
1
Jul 2014
0
0
1
Nov 2014
0
0
2
Feb 2015
0
0
6
Mar 2015
1
0
7
Apr 2015
0
0
1
May 2015
0
0
1
Jul 2015
0
0
2
Sep 2015
0
0
7
Oct 2015
0
0
2
Nov 2015
0
0
1
Jan 2016
0
0
2
Feb 2016
0
0
5
Mar 2016
0
0
4
Jun 2016
0
0
5
Aug 2016
0
0
2
Sep 2016
0
0
1
Oct 2016
0
0
3
Nov 2016
0
0
2
Dec 2016
0
0
2
Jan 2017
0
0
1
Feb 2017
0
0
1
Mar 2017
0
0
1
May 2017
0
0
1
Jun 2017
0
0
1
Jul 2017
0
0
1
Aug 2017
0
0
3
Sep 2017
0
0
2
Nov 2017
0
0
2
Feb 2018
0
0
1
Jul 2018
0
0
1
Aug 2018
0
0
1
Sep 2018
0
0
3
Jan 2019
0
0
4
Feb 2019
0
0
3
Mar 2019
0
0
3
Apr 2019
0
0
2
May 2019
0
0
2
Jun 2019
0
0
3
Jul 2019
0
0
2
Aug 2019
0
0
3
Sep 2019
0
0
1
Oct 2019
0
0
4
Nov 2019
0
0
3
Dec 2019
0
0
2
Jan 2020
0
0
2
Feb 2020
0
0
1
Mar 2020
0
0
3
Apr 2020
0
0
2
May 2020
0
0
1
Jul 2020
0
0
5
Aug 2020
0
0
2
Sep 2020
0
0
3
Nov 2020
0
0
1
Dec 2020
0
0
2
Jan 2021
0
0
2
Feb 2021
0
0
3
Mar 2021
0
0
3
Apr 2021
0
0
1
May 2021
0
0
2
Jun 2021
0
0
3
Jul 2021
0
0
2
Aug 2021
0
0
2
Sep 2021
0
0
1
Oct 2021
0
0
16
Nov 2021
0
0
15
Jan 2022
0
0
2
Feb 2022
0
0
1
Mar 2022
0
0
2
Apr 2022
0
0
2
May 2022
0
0
12
Jun 2022
0
0
6
Aug 2022
0
0
1
Sep 2022
0
0
21
Oct 2022
0
0
1
Nov 2022
0
0
2
Dec 2022
0
0
2
Jan 2023
0
0
4
Apr 2023
0
0
1
May 2023
0
0
4
Jul 2023
0
0
5
Aug 2023
0
0
3
Sep 2023
0
0
3
Oct 2023
0
0
2
Nov 2023
0
0
3
Dec 2023
0
0
1
Jan 2024
0
0
1
Total
1
0
366
Read the full text or download the PDF:
Subscribe
Log in
Log in via Institution
Log in via OpenAthens
Log in using your username and password
For personal accounts OR managers of institutional accounts
Username
*
Password
*
Forgot your log in details?
Register a new account?
Forgot
your user name or password?
PDF