Skip to main content
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
Archive
For authors
About
Browse by collection
Search for this keyword
Advanced search
Close
More
Main menu
Latest content
Archive
For authors
About
Browse by collection
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 11, Issue 3
How well can we assess the validity of non-randomised studies of medications? A systematic review of assessment tools
Email alerts
Article metrics
Article menu
Article
Text
Article
info
Citation
Tools
Share
Rapid Responses
Article
metrics
Alerts
PDF
PDF +
Supplementary
Material
XML
Epidemiology
Original research
How well can we assess the validity of non-randomised studies of medications? A systematic review of assessment tools
Online download statistics by month:
Online download statistics by month: March 2021 to August 2022
Abstract
Full
Pdf
Mar 2021
593
587
179
Apr 2021
230
219
90
May 2021
170
160
63
Jun 2021
129
121
45
Jul 2021
197
193
45
Aug 2021
138
130
76
Sep 2021
253
253
74
Oct 2021
265
260
77
Nov 2021
207
196
80
Dec 2021
72
65
39
Jan 2022
135
127
58
Feb 2022
99
95
47
Mar 2022
127
125
59
Apr 2022
131
119
47
May 2022
112
107
51
Jun 2022
119
122
52
Jul 2022
95
86
42
Aug 2022
14
12
14
Total
3086
2977
1138
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?