TY  - RPRT
TI  - Methodological issues in radiographic scoring methods in rheumatoid arthritis.
AU  - D van der Heijde
AU  - M Boers
AU  - M Lassere
PY  - 1999
UR  - https://pubmed.ncbi.nlm.nih.gov/10090191/
ID  - 10090191
ER  -