周学海

Zhou Xuehai's dates of birth and death, native place and nationality are not clearly recorded in publicly available sources; the surviving information is very limited, and his identity is known to later generations mainly through the medical books he wrote. Five of his works are included in the collection: Reading Notes on Medicine (Du Yi Sui Bi), A Concise Study of Pulse Theory (Mai Yi Jian Mo, in two entries), A Concise Study of Diagnosis by Physique and Complexion (Xing Se Wai Zhen Jian Mo), and Supplementary Examples on Cold Damage (Shang Han Bu Li), all belonging to the field of medicine. Judging by their titles and subjects, his writings cover pulse studies, inspection of physique and complexion, and the differentiation of patterns in cold-damage disorders. They combine theoretical analysis with clinical experience and record his reflections on medical theory in essay form. The two concise studies focus on methods of diagnosis and examination, while Supplementary Examples on Cold Damage offers further explanation of the diagnosis and treatment of cold-damage disorders. Overall, his works address Chinese medical diagnosis and the study of the classics in a concise and practical style and may serve as reference for students and practitioners.