@article {pmid22014760,
	title = {Does breastfeeding reduce acute procedural pain in preterm infants in the neonatal intensive care unit? A randomized clinical trial},
	journal = {Pain},
	volume = {152},
	number = {11},
	year = {2011},
	month = {Nov},
	pages = {2575{\textendash}2581},
	author = {Holsti, L. and Oberlander, T. F. and Brant, R.}
}
