EVIDENCE: {'Observed_samples': {'Present_SOLO_SR': 0, 'Present_SOLO_R': 0, 'Present_SOLO_S': 0}, 'Additional grading criteria applied': 'RRDR', 'FINAL CONFIDENCE GRADING': '2) Assoc w R - Interim', 'INITIAL CONFIDENCE GRADING': '3) Uncertain significance', 'WHO HGVS': 'rpoB_p.Ser428Thr'}