Some beginner links to starting research. The most useful and helpful resource in research is an older colleague or mentor.
A guide to radiological research
RCR pdf on research, funding and presentation
How to move into medical research - guidance for doctors
Research Options for doctors in Training
RCR Research links and sources of funding guide
Planning a clinical trial
Sample size calculation advice
Trainee led research collaboratives: pioneers in the new research landscape. BMJ Careers
Papworth research skills course. BMJ Careers
Scientific methods and research techniques (SMaRT) course, BMJ Careers.