TY  - RPRT
TI  - [Rheumatoid factor IgM analyses in Danish laboratories. An interlaboratory study].
AU  - B Schiøttz-Christensen
AU  - M Høier-Madsen
AU  - B Langeland
AU  - A Wiik
AU  - N Grunnet
PY  - 1993
UR  - https://pubmed.ncbi.nlm.nih.gov/8447029/
ID  - 8447029
ER  -