PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10536484-2 1999 We described here a 15-year-old boy with positive anti-neutrophil cytoplasmic antibody (MPO-ANCA) and severe mPAN, who was effectively treated with intravenous methylprednisolone pulse therapy followed by monthly cyclophosphamide pulses for 1 year. Cyclophosphamide 213-229 myeloperoxidase Homo sapiens 88-91