Skip to main content
Subscribe
Log In
More
Log in via Institution
Log in via OpenAthens
Log in via AAO
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
Browse by collection
Authors
About
Search for this keyword
Advanced search
Close
More
Main menu
Latest content
Current issue
Archive
Browse by collection
Authors
About
Subscribe
Log in
More
Log in via Institution
Log in via OpenAthens
Log in via AAO
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 97, Issue 10
A cautious approach to interpreting retrospective data
Email alerts
Article metrics
Article menu
Article
Text
Article
info
Citation
Tools
Share
Rapid Responses
Article
metrics
Alerts
PDF
PostScript
Letters
A cautious approach to interpreting retrospective data
Online download statistics by month:
Online download statistics by month: August 2013 to February 2024
Abstract
Full
Pdf
Aug 2013
102
6
11
Sep 2013
133
25
23
Oct 2013
38
32
21
Nov 2013
44
9
9
Dec 2013
10
3
5
Jan 2014
19
1
1
Feb 2014
11
0
3
Mar 2014
22
1
0
Apr 2014
15
0
0
May 2014
8
2
0
Jun 2014
11
0
1
Jul 2014
15
0
2
Aug 2014
12
0
2
Sep 2014
3
2
1
Oct 2014
7
1
0
Nov 2014
4
0
1
Dec 2014
13
1
2
Jan 2015
4
0
1
Feb 2015
3
0
0
Mar 2015
11
1
3
Apr 2015
4
1
2
May 2015
0
0
3
Jun 2015
0
1
2
Jul 2015
4
1
1
Aug 2015
2
1
0
Sep 2015
6
2
1
Oct 2015
1
0
0
Nov 2015
5
0
0
Dec 2015
5
1
0
Jan 2016
5
1
0
Feb 2016
4
0
1
Mar 2016
1
0
0
Apr 2016
4
0
0
May 2016
4
0
1
Jun 2016
7
0
0
Jul 2016
3
0
3
Aug 2016
6
0
0
Sep 2016
10
0
0
Oct 2016
10
0
1
Nov 2016
6
0
0
Dec 2016
7
0
0
Jan 2017
5
0
0
Feb 2017
12
0
0
Mar 2017
6
0
0
Apr 2017
6
0
0
May 2017
10
0
0
Jun 2017
15
0
0
Jul 2017
12
2
0
Aug 2017
16
0
0
Sep 2017
104
1
0
Oct 2017
232
0
0
Nov 2017
75
9
0
Dec 2017
59
18
1
Jan 2018
32
13
0
Feb 2018
46
12
0
Mar 2018
34
9
0
Apr 2018
27
13
1
May 2018
24
8
0
Jun 2018
27
12
0
Jul 2018
21
13
0
Aug 2018
29
13
0
Sep 2018
29
14
0
Oct 2018
16
8
0
Nov 2018
16
8
0
Dec 2018
20
9
0
Jan 2019
18
8
0
Feb 2019
28
8
0
Mar 2019
16
0
0
Apr 2019
1
1
0
May 2019
6
4
0
Jun 2019
23
11
1
Jul 2019
23
8
0
Aug 2019
21
9
0
Sep 2019
35
9
0
Oct 2019
20
8
0
Nov 2019
8
8
0
Dec 2019
13
9
0
Jan 2020
10
8
0
Feb 2020
15
9
0
Mar 2020
9
9
0
Apr 2020
21
10
0
May 2020
27
14
1
Jun 2020
33
8
0
Jul 2020
32
8
0
Aug 2020
28
7
0
Sep 2020
52
9
0
Oct 2020
39
8
0
Nov 2020
17
0
1
Dec 2020
42
0
0
Jan 2021
16
0
0
Feb 2021
17
0
0
Mar 2021
18
0
0
Apr 2021
16
0
0
May 2021
4
0
0
Oct 2021
10
0
0
Nov 2021
23
0
0
Dec 2021
10
0
0
Jan 2022
18
0
0
Feb 2022
16
0
0
Mar 2022
8
0
0
Apr 2022
10
0
0
May 2022
32
0
0
Jun 2022
44
2
0
Jul 2022
12
0
0
Aug 2022
47
0
0
Sep 2022
42
0
1
Oct 2022
32
0
0
Nov 2022
13
0
0
Dec 2022
20
0
0
Jan 2023
4
2
1
Feb 2023
60
0
0
Apr 2023
2
0
0
May 2023
8
0
0
Jun 2023
6
0
0
Jul 2023
10
0
0
Sep 2023
1
0
0
Oct 2023
2
0
1
Nov 2023
18
0
0
Dec 2023
10
1
0
Jan 2024
22
0
0
Feb 2024
8
0
0
Total
2548
432
109
Read the full text or download the PDF:
Subscribe
Log in
Log in via Institution
Log in via OpenAthens
Log in via AAO
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?