When seeing patients in the dental clinic, Sun often came across people with ulceration of the mouth. Because the health of the mouth is closely connected to the functioning of the entire body, to treat these patients, it was necessary to seek information from the field of internal medicine.
孫安迪在牙科門診時，常接觸病人口腔潰爛之類的病變，由於口腔不是獨立存在的，而與全身功能息息相關，為了治療，就必須涉獵內科方面的知識。