Grant Lewison, Guillermo Paraje. The classification of biomedical journals by research level. Scientometrics, 60(2):145-157, 2004. [doi]
@article{LewisonP04,
title = {The classification of biomedical journals by research level},
author = {Grant Lewison and Guillermo Paraje},
year = {2004},
doi = {10.1023/B:SCIE.0000027677.79173.b8},
url = {http://dx.doi.org/10.1023/B:SCIE.0000027677.79173.b8},
tags = {classification},
researchr = {https://researchr.org/publication/LewisonP04},
cites = {0},
citedby = {0},
journal = {Scientometrics},
volume = {60},
number = {2},
pages = {145-157},
}