Patient’s Global Impression of Change (PGIC): Subgroup Results. A: FabAV: Crotaline Polyvalent Immune Fab (ovine). Subgroup size: FabAV n = 15; No FabAV n = 5. Missing data from one FabAV subject on Day 3 and one No FabAV subject on Day 14. B: Subgroup size: Mild n = 1, Moderate n = 16, Severe n = 3. Missing data from 1 Severe subject on Day 3 and one Moderate subject on Day 14. C: Subgroup size: Upper extremity n = 10, Lower extremity n = 10. Missing data from one Lower Extremity subject on Day 3 and one Upper Extremity subject on Day 14.