| 1 | Mingmen doctrine is founded on the "difficult by the" mature in the Ming Dynasty. | |
| 2 | "The famous and the invisible" concept in "Nan Jing" was initiated from Tao thought. | |
| 3 | Though Nan Jing (Canon On Eighty-One Difficult Issues) is a small book, it is systematic in content because it has discussed many important concepts. | |
| 4 | After Huangdi's Classic on Medicine another classic of medicine, Classic on Medical Problems ( Nan Jing ), was given birth to the world before the Eastern Han Dynasty. | |
| 5 | The extant first volume of the original block-printed edition, revised by Lü Fu, was collected in the Library of China Academy of Military Medical Science. |