Hizkia, Indra, Lilis Novitarum, and Mestiana Br Karo. “Overview Of Elderly Knowledge About Rheumatoid Arthritis In Barusjahe District Puskesmas Karo 2021”. Science Midwifery 10, no. 1, October (September 29, 2021): 198–202. Accessed April 27, 2026. https://midwifery.iocspublisher.org/index.php/midwifery/article/view/184.