Usage
getBED(D=NULL, fd=NULL, fn=NULL, ab=NULL)
## S3 method for class 'default':
getBED(D=NULL, fd=NULL, fn=NULL, ab=NULL)
## S3 method for class 'DVHs':
getBED(D=NULL, fd=NULL, fn=NULL, ab=NULL)
## S3 method for class 'DVHLst':
getBED(D=NULL, fd=NULL, fn=NULL, ab=NULL)
## S3 method for class 'DVHLstLst':
getBED(D=NULL, fd=NULL, fn=NULL, ab=NULL)