What two categories can be roughly divided into the contents of acupuncture classics A and B?

This edition of acupuncture classics A and B is divided into 12 volumes and 128 articles. Content can be roughly divided into two categories. The first category discusses human physiological functions, human meridians, bone mineral density, intestine and gastrointestinal diseases, indications, diagnosis, acupoints, physiology and pathology, etc. The second category is clinical treatment, including internal and external departments of women and children, especially internal medicine. Acupuncture Classics A and B have made remarkable achievements in unifying acupuncture meridian points and discussing the indications and contraindications of acupuncture treatment. This book has a great influence on the development of acupuncture in China, and the famous acupuncture works in later generations are basically based on it, so later generations have always regarded this book as the originator of acupuncture in traditional Chinese medicine.