Circadian pattern and the effect of standardized physical exercise on procollagen IIA N-peptide (PIIANP) in rheumatoid arthritis at different stages and in healthy individuals

A. F. Christensen, T. Lottenburger, H. M. Lindegaard, K. Junker, K. Horslev-Petersen and P. Junker

Biomarkers 15 ( 1 ): 80 - 85 , 2010