1.What kind of medical book do you think of Shanghan Lun to be? What understand do you have about its position and significance in TCM?

2.What does “Six meridian patterns” in Shanghan Lun refer to? Please give a brief explanation for the essence of each pattern!

3.What are the basic meanings of principal syndrome, concomitant syndrome and transmuted syndrome? How do you understand the relationships among them to be?