If you want to try before you buy, then you can sign up to BMJ Learning for Free and complete our Free courses.
You can see our Free courses here: https://new-learning.bmj.com/discover/free-courses
If you find one you're interested in, then click Start Learning
You'll be asked to Register
Then you can select 'Continue for Free' option
Note: Certificates are not available for Free users. To download a certificate you must have a paid account, either through your own subscriptions or the subscription of your employer/university.