Are observational studies 'just as effective' as randomized clinical trials?

Authors
Greene, T
Citation
T. Greene, Are observational studies 'just as effective' as randomized clinical trials?, BLOOD PURIF, 18(4), 2000, pp. 317-322
Citations number
22
Categorie Soggetti
Urology & Nephrology
Journal title
BLOOD PURIFICATION
ISSN journal
02535068 → ACNP
Volume
18
Issue
4
Year of publication
2000
Pages
317 - 322
Database
ISI
SICI code
0253-5068(2000)18:4<317:AOS'AE>2.0.ZU;2-Y