TY  - GEN
AU  - Maetzel,A
AU  - Bombardier,C
TI  - Give observational studies a chance: better observational studies make better economic evaluations
SN  - 0315-162X
PY  - 1999///1217
KW  - Antirheumatic Agents
KW  - adverse effects
KW  - Evaluation Studies as Topic
KW  - Health Care Costs
KW  - Health Status
KW  - Humans
KW  - Rheumatic Diseases
KW  - drug therapy
KW  - Treatment Outcome
N1  - Publication Type: Editorial
ER  -