title: Myasthenia gravis and levonorgestrel implant.
mesh_terms: D000328:Adult; D004343:Drug Implants; D005260:Female; D006801:Humans; D016912:Levonorgestrel / Q000008:administration & dosage / Q000009:adverse effects*; D009157:Myasthenia Gravis / Q000139:chemically induced*
chemical_list: D004343:Drug Implants; D016912:Levonorgestrel