N-terminal PRO-brain natriuretic peptide in patients with early rheumatoid arthritis. Issue 1 (July 2015) - Kirillova, I.; Novikova, D.; Popkova, T.; Gorbunova, Y.; Markelova, E.; Korsakova, Y.; Volkov, A.; Novikov, A.; Alexandrova, E.; Fomicheva, O.; Karateev, D.; Nasonov, E.