title: Head and neck cancer with metastatic spread to the breast.
authors.affiliation: Department of Radiation Oncology, University of Pennsylvania, Philadelphia. Electronic address: peter.ahn@uphs.upenn.edu.
authors.forename: Peter H
authors.initials: PH
authors.lastname: Ahn
authors.affiliation: Department of Otorhinolaryngology-Head and Neck Surgery, University of Pennsylvania, Philadelphia.
authors.forename: Gregory
authors.initials: G
authors.lastname: Weinstein
authors.affiliation: Department of Radiation Oncology, University of Pennsylvania, Philadelphia.
authors.forename: Eric
authors.initials: E
authors.lastname: Ojerholm
authors.affiliation: Department of Radiation Oncology, University of Pennsylvania, Philadelphia.
authors.forename: Alexander
authors.initials: A
authors.lastname: Lin
authors.affiliation: Department of Radiation Oncology, University of Pennsylvania, Philadelphia.
authors.forename: William
authors.initials: W
authors.lastname: Levin
authors.affiliation: Department of Medical Oncology, University of Pennsylvania, Philadelphia.
authors.forename: Arati
authors.initials: A
authors.lastname: Desai
mesh_terms: D052685:Alphapapillomavirus / Q000302:isolation & purification; D001943:Breast Neoplasms / Q000556:secondary*; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology / Q000556:secondary* / Q000821:virology; D005260:Female; D006258:Head and Neck Neoplasms / Q000453:epidemiology / Q000556:secondary* / Q000821:virology; D006801:Humans; D007822:Laryngeal Neoplasms / Q000453:epidemiology / Q000473:pathology* / Q000821:virology; D008175:Lung Neoplasms / Q000556:secondary; D008875:Middle Aged; D012307:Risk Factors; D000077195:Squamous Cell Carcinoma of Head and Neck