History of healthcare in Jiangnan area during Ming and Qing dynasties 并列题名：History of healthcare in Jiangnan area during Ming and Qing dynasties a study on the legal system of foreign trade during the ming and qing dynasties History on painting in GuangDong of Ming and Qing dynasties History of purple clay art in Ming and Qing Dynasties Research on mining industry in Central China during Ming and Qing dynasties History of Sandu in Ming and Qing dynasties social history of the livelihood religions in Dunhuang during the Tang and Song dynasties History of diplomatic system in Han and Tang dynasties Study of the acculturation strategies of kaifeng jews during the ming and qing dynasties