a list of studies run through the counter builtin function

counter dictionary

Counter({'CR CHEST ': 27,
         'CT HEAD ': 16,
         'CT ABDOMEN  ': 11,
         'CT CHEST ': 6,
         'CT CSPINE ': 5,
         'CTA CHEST ': 4,
         'US GALLBLADDER / RUQ ': 3,
         'CTA NECK ': 3,
         'US PELVIS ': 3,
         'CTA HEAD ': 2,
         'US VENOUS DOPPLER LLE ': 2,
         'CR ANKLE LEFT ': 2,
         'CR WRIST LEFT ': 2,
         'CT SOFT TISSUE NECK ': 2,
         'CR FEMUR RIGHT ': 1,
         'CR KUB ': 1,
         'CT ANKLE LEFT ': 1,
         'US RENAL ': 1,
         'CR KNEE LEFT ': 1,
         'CR HUMERUS RIGHT ': 1,
         'CR SHOULDER RIGHT ': 1,
         'CR ORBITS ': 1,
         'MRI PELVIS ': 1,
         'CR PELVIS ': 1,
         'CR TIBIA / FIBULA RIGHT ': 1,
         'CR ELBOW LEFT ': 1,
         'CR HAND LEFT ': 1,
         'CR UPPER EXTREMITY LEFT ': 1,
         'CR ANKLE RIGHT ': 1,
         'CR FOOT RIGHT ': 1,
         'CTA ABDOMEN ': 1,
         'CT MAXILLOFACIAL  ': 1,
         'CT UPPER EXTREMITY LEFT  ': 1,
         'US ARTERIAL LUE ': 1,
         'US ABDOMEN LIMITED ': 1,
         'CT [ONLY] PELVIS ': 1,
         'US VENOUS DOPPLER RLE ': 1,
         'US RLQ / APPENDIX ': 1})