Practical guide for critical appraisal. Elwood,J. Mark. Causal relationships in medicine. A practical system for critical appraisal. Oxford: Oxford University Press. 1988. 332 pages. 540 dkr.
Restricted accessOtherFirst published online June, 1990
Practical guide for critical appraisal. Elwood,J. Mark. Causal relationships in medicine. A practical system for critical appraisal. Oxford: Oxford University Press. 1988. 332 pages. 540 dkr.
