Case Report: Balancing immunosuppression and infection—intravenous immunoglobulin in anti-HMGCR immune-mediated necrotizing myopathy complicated by severe pneumonia - Jing Fu; Qiong Zhao; Jing-Bo Lou; Gui-Hua Tang; Wei Chen; Jiang-Hu Zhao; Qian-Song He (Frontiers in Medicine, 2026)