Are adverse events of nevirapine and efavirenz related to plasma concentrations?

Bregt S. Kappelhoff, Frank Van Leth, Patrick A. Robinson, Thomas R. MacGregor, Ezio Baraldi, Francesco Montella, David E. Uip, Melanie A. Thompson, Darren B. Russell, Joep M.A. Lange, Jos H. Beijnen, Alwin D.R. Huitema