TI  - PHiladelphia county medical society.
PT  - JOUR
DP  - 1999
TA  - JAMA
pages = {790F},
VI  - 281
IP  - 9
AID  - 10.1001/jama.281.9.790 [doi]
4100  - http://dx.doi.org/10.1001/jama.281.9.790
SO  - JAMA March 3, 1999 281(9):790F