TY  - BOOK
AU  -  Helfet Arthur J., Lee David M. Gruebel 
TI  - Disorders of the lumbar spine
SN  - 0397503814
U1  - WE725 
PY  - 1978///
CY  - Philadelphia
PB  - J. B. Lippincott 
KW  - Spinal Diseases
KW  - Lumbar Vertebrae
N2  -  Lumbar Vertebrae, Spinal Diseases
ER  -