I want to know the answer to the following question:
How long was the doctrines of Galen in use for?
All the background I'm provided with is that "Most of Galen's teachings were gathered and enhanced in the late 11th century by Benedictine monks at the School of Salerno in Regimen sanitatis Salernitanum, which still had users in the 17th century.". Is that enough to answer the question?