Efficacy of sweet solutions in relieving pain caused by vaccination in infants aged 1 to 12 months: a systematic review
CHEN Shao-Lin, Harrison Denise, HUANG Rui-Rui, ZHANG Qing, XIE Ri-Hua, WEN Shi-Wu
CJCP . 2016, (6): 534 -540 .  DOI: 10.7499/j.issn.1008-8830.2016.06.013