Complex sentence: Forbes credited Breggin with "almost single-handedly reenergizing the anti-Ritalin contingent", which lead to a "flurry of lawsuits and news stories", while it also questioned whether he might have been "overstating the case".
Split into simpler sentences: Forbes credited Breggin with "almost single-handedly reenergizing the anti-Ritalin contingent", which led to a "flurry of lawsuits and news stories". The article also questioned whether he might have been "overstating the case".