Whenever one book was finished, both of my eyes were full of tears. It was extremely hard. Every word in these books concreted Dr. Xu Ze's hard work and dedication to oncology and to human health. No one knows how hard it was to finish all this work. Science is endless, and only those who are not afraid of danger or difficult work or risk can reach the science peak. This book is volume 5 in this series of walking out of the new way to conquer cancer...