Watanabe T, Takahashi Y, Hirabayashi K, Tomaru U, Machida M
a Department of Internal Medicine , Tomakomai City Hospital , Tomakomai , Japan.
b Department of Cardiology , Tomakomai City Hospital , Tomakomai , Japan.
Scand J Rheumatol. 2019 Mar;48(2):164-165. doi: 10.1080/03009742.2018.1514068. Epub 2018 Dec 5.