TY - JOUR AU - Massey, P; Leader, A; Yom-Tov, E; Budenz, A; Fisher, K; Klassen, A TI - Applying multiple data collection tools to quantify human papillomavirus vaccine communication on Twitter JO - J Med Internet Res IS - 12 VL - 18 PY - 2016 DO - 10.2196/jmir.6670 L3 - PubMed-ID: 27919863 SP - e318 ER -