PT - JOURNAL ARTICLE AU - Nancy J. Olsen AU - David R. Karp TI - Hydroxychloroquine: An Old Drug With New Tricks AID - 10.3899/jrheum.201589 DP - 2021 Jun 01 TA - The Journal of Rheumatology PG - 796--798 VI - 48 IP - 6 4099 - http://www.jrheum.org/content/48/6/796.short 4100 - http://www.jrheum.org/content/48/6/796.full SO - J Rheumatol2021 Jun 01; 48