In 2005, Penny H. Feldman with her group of researchers assigned randomly (The randomization was carried out by staff blinded to the study) individuals newly diagnosed with heart failure into three groups of home care nurses; one group delivered usual care (the control group), the second and third (intervention groups) delivered…

In 2013, Jane Wilcock and her colleagues conducted a cluster randomised controlled trial in the UK to find answers to the above question.  A qualified and experienced General Practitioners conducted practice-based workshops for consenting general practitioners in 23 practices. The workshop sessions first assessed their educational needs and then addressed those…

This study is considered as a classic case-control study since the study design used only eight patients. They were compared with eight matched controls. Anyone interested can access the original study here since it is now in public domain.