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The handout distributed to Piglet Grimace Scale (PGS) assessors with images and explanations for each of the 3 Facial Action Units (FAUs). Ear position and check tightening/nose bulge is scored according to whether it is not present (0), moderately present (1), and obliviously present (2). While orbital tightening is scores on a 2-point scale: Not present (0), present (1).
