Her experience in caring for over 400 cancer patients, since 1991, is the basis of knowledge for this book. Over the years, she has developed a clear and powerful vision of the problems and concerns of those who are facing cancer. Her experience in cancer pain management has led to the development of her nursing theory - The Continuum of Pain, The Continuum of Pain Control, which is included in her book, Mind, Body and Soul. It has served as the basis for maintaining almost all of her patients pain-free.