 Data extracted from the participants medical record will be used to comprise a table of demographic characteristics that will include data on: age, sex, diagnose, body mass index BMI, Glasgow Coma Score GCS at admittance, days removed from injury, level of functioning as measured with Early Functional Abilities scale EFA as well as level of consciousness as measured with Coma Recovery Scale - Revised CRS-R. Likewise, data of participants medicinal intake during the study period will be retrieved from their medical record. 