Great Doctor Ling Ran is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.nl fastest updating comic site. The Summary is

Ling Ran, whose goal is to become the world's greatest doctor, suddenly obtained the golden finger system! And this is a system with a high degree of medical expertise! With the help of the system, what medical height can the intern Ling Ran reach?