TY  - BOOK
AU  - Marshall,Shane A.
AU  - Ruedy,John
TI  - On call: principles and protocols 
SN  - 0721639828
PY  - 1993///
CY  - Philadelphia
PB  - W. B. Saunders
KW  - Emergencies
KW  - handbooks
KW  - Emergency Medicine
ER  -