Keywords used in the search included: “filgrastim,” “pegfilgrastim,” “granulocyte colony-stimulating factor,” “drug-induced myopathy,” “rhabdomyolysis,” “statin-associated muscle symptoms,” and “fluoroquinolone-induced tendinopathy.” Boolean operators were applied to combine search terms as follows: (“filgrastim” AND “rhabdomyolysis”) OR (“pegfilgrastim” AND “myopathy”) OR (“statins” AND “muscle symptoms”) OR (“fluoroquinolones” AND “tendinopathy”) OR (“drug-induced” AND “myopathy”). The gene discussed is CSF3; the disease is myopathy.