ArticleThe New England journal of medicine2000
Observational studies and randomized trials.
R Kunz et al.PubMed ↗Publisher ↗
No numbers read from the abstract.
4 papers cite it
this paperpooled itcites it
ArticleThe New England journal of medicine2000
R Kunz et al.PubMed ↗Publisher ↗
No numbers read from the abstract.