title: Absence of influenza vaccination among high-risk older adults in Taiwan.
authors.affiliation: Institute of Health Care Management, National Sun Yat-Sen University, 70 Lien-Hai Road, Kaohsiung 804, Taiwan. ycli@faculty.nsysu.edu.tw
authors.forename: Ying-Chun
authors.initials: YC
authors.lastname: Li