%0 Journal Article %T Drug tolerability and reasons for discontinuation of seven biologics in elderly patients with rheumatoid arthritis -The ANSWER cohort study- %A Akira Onishi %A Atsushi Kumanogoh %A Hideki Amuro %A Hideki Yoshikawa %A Keiichi Yamamoto %A Koichi Murata %A Koji Nagai %A Kosuke Ebina %A Makoto Hirao %A Masaki Katayama %A Motomu Hashimoto %A Ryota Hara %A Sadao Jinno %A Tohru Takeuchi %A Toru Hirano %A Wataru Yamamoto %A Yonsu Son %A Yuichi Maeda %J Archive of "PLoS ONE". %D 2019 %R 10.1371/journal.pone.0216624 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6505948/