Oral health knowledge and related factors among the elderly in community#br#
YU Hong1,2， ZHANG Jing3， ZANG Yu1,2， LI Yan1,2， YANG Fengjuan1,2， ZHANG Ruili1,2*
Journal of Hebei Medical University . 2018, (6): 699 -702,706 .  DOI: 10.3969/j.issn.10073205.2018.06.020