TY  - BOOK
AU  - Purdy, R. Allan
AU  - Rapoport, Alan M
AU  - Sheftell, Fred D
TI  - Advanced therapy of headache
SN  - 9781550090574
SN  - 99205418
U1  - 616.8491 RAP 
PY  - 1999///
CY  - Hamilton [Ont.] ; Saint Louis
PB  - Decker
KW  - Headache - Case studies
ER  -