Fig. 2From: Improvements in clinical signs of Parkinson’s disease using photobiomodulation: a prospective proof-of-concept studyChanges in micrographia of participants over the photobiomodulation treatment period. A – perimeter of words; B – area of words. Group A: n = 5, P = 0.95, F = 0.05; Group B: n = 6, P = 0.24, F = 1.6Back to article page