婴儿注射疫苗的疼痛观察
钱丽冰,魏玲玲
Observation on the pain of infants receiving vaccine injection
QIAN Libing, WEI Lingling
中国临床护理 . 2017, (6): 475 -477 .  DOI: 10.3969/j.issn.1674-3768.2017.06.005