LevamisoleNeutropeniaAntinematodal AgentsAgranulocytosisPyrantelFurylfuramideAscaris suumBephenium CompoundsAnthelminticsFebrile NeutropeniaDrug ContaminationVeterinary DrugsChemotherapy-Induced Febrile NeutropeniaAntineoplastic Combined Chemotherapy ProtocolsFeverGranulocyte Colony-Stimulating FactorDrug Administration ScheduleFluorouracilOesophagostomumOxyuroideaOxyuriasisTreatment Outcome