TY  - BOOK
AU  -  Symon,L.
TI  -  Advances and technical standards in neurosurgery / 
SN  -  3211821171
PY  - 1990///
CY  -  NewYork : 
PB  -  Springer- Verlag , 
KW  -  Neurosurgery
N1  -  This is vol. 17;  Includes bibliographical references and index
ER  -