Skills for treatment library

hack: B&E = ql * 850/200, CL = ql * 800/200
combine: EE = ql * 900/200, CL = ql * 800/200

hacking tools ql is at least 90% of clinic/tutor ql
tutor ql is at least 90% of clinic ql (for usual library)
clinic ql is at least 90% of tutor ql (for doctors library)

Great! I want to be the first one to thank you for finding this info, I'm always curious about the skills required to do certain tradeskills.