RT Journal Article SR Electronic T1 What are the treatment options for myasthenia gravis if first-line agents fail? JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 81 OP 84 DO 10.3949/ccjm.90a.22022 VO 90 IS 2 A1 Christopher Zust A1 John A. Morren YR 2023 UL http://www.ccjm.org/content/90/2/81.abstract AB