1 Ascension-St. John Hospital, 11900 E 12 Mile Road, Suite 210, Warren, MI 48093, USA.
2 Head and Neck Oncology/Microvascular Surgery, Ascension-St. John Hospital, Detroit, MI, USA; Oral/Maxillofacial Surgery, Ascension-St. John Hospital, 11900 E 12 MIle Road, Warren, MI 48093 USA; Microvascular Surgery, Ascension-St. John Hospital, Detroit, MI, USA. Electronic address: carlos.ramirez@ascension.org.