7Blumenfeld TA,Turi GK,Blanc WA. Recommended site and depth of newborn heel shin puncture based on anatomical measurements and histopathology[J].{H}LANCET,1979.230-233.
8Ballardini G,Spruzzola A,Boneschi L. To reduce the pain of heel prick in the newborn:comparison of six types of lancets[J].{H}Pediatria Medica E Chirurgica,2012,(4):182-185.
9Baba LR,McGrath JM,Liu J. The efficacy of mechanical vibration analgesia for relief of heel stick pain in neonates:a novel approach[J].{H}Journal of Perinatal and Neonatal Nursing,2010,(3):274-283.
10Iturriaga GS,Unceta-Barrenechea AA,Zárate KS. Analgesic effect of breastfeeding when taking blood by heel-prick in newborns[J].An Pediatr (Barc),2009,(4):310-313.