German anesthesiologist Joachim Boldt is believed to hold the dubious distinction of having the most retractions—about 90. Boldt's scientific record also came under fire several years ago by some of the same journal editors questioning Fujii's work.
Is this coincidence or a pattern? I have no idea how the journal publishing is supposed to work, but being the "victim" of the two most prolific forgers leaves me a little suspicious of the quality of the publishing in general.
Also, what is it about anesthesiology and its practitioners that makes them succumb to the lure of academic forgery? Something about people who enjoy putting other people at the edge of death being power-mad? Or, it could be that these journal editors just decided to crack down, and if a bunch of editors of say, cardiology journals did the same, they'd find just as much fakery in their field.