MUSK and Fatigable weakness: Abbreviations: MG myasthenia gravis, EOMG early-onset MG, LOMG late-onset MG, VLOMG very late-onset MG, AChR acetylcholine receptor, MuSK muscle-specific kinase, MG-ADL Myasthenia Gravis Activities of Daily Living, DM diabetes mellitus, HF heart failure, CKD chronic kidney disease, BPH benign prostatic hyperplasia