ssing of WFDB records 
   mrgann          - Merge annotation files
   msentropy       - Multi scale entropy estimation
   physionetdb     - Get information about all of PhysioNet's available databases and signals
   pbsearch        - Search PhysioBank from MATLAB's browser for records with specific features. 
   rdann           - Read annotation files for WFDB records
   rdmat           - Reads a signal into the workspace from a *.mat file generated by WFDB2MAT
   rdmimic2wave    - Searches MIMIC II matched