TY  - BOOK
AU  - SHAVER,DAVID C.
AU  - PHELAN,SHARON T.(EDIT)
AU  - BECKMANN,SHARLES R
AU  - LING,FRANK W.
TI  - CLINICAL MANUAL OF OBSTETRICS, 2ND ED. / 
U1  - 618.2 
PY  - 1993///
CY  - [S.N] : 
PB  - MC GRAW - HILL ، 
KW  - OBSTETRICS
ER  -