Shirley was invited to join a surgical trial of sentinel node biopsy after she had been diagnosed with breast cancer (DCIS, ductal carcinoma in situ). (You can read more of Shirley's experience on the healthtalkonline DCIS site, Interview 22).

Angela was diagnosed with Parkinson's disease after taking part in a trial on nerve conduction. She has since been in a randomised trial of different drugs for Parkinson's and would happily take part in another trial, despite having had side effects.(Angela is also on our Parkinson's disease site, Interview 10).

Sarah volunteered for a placebo-controlled trial of a drug intended to help women at risk of osteoporosis. It involved daily injections and eventually she dropped out of the trial. (You can see Sarah talking more about her experiences on the healthtalkonline site osteoporosis, Interview 27).