TY  - GEN
AU  - St George,D A
TI  - Monitoring the frequency of side effects of drugs. Data from several sources are needed to show numbers taking drugs
SN  - 0959-8138
PY  - 1996///0719
KW  - Adverse Drug Reaction Reporting Systems
KW  - Data Collection
KW  - Humans
KW  - United Kingdom
N1  - Publication Type: Letter; Comment
UR  - https://doi.org/10.1136/bmj.312.7043.1419
ER  -