@article {pmid21429518,
	title = {Infant distress at five weeks of age and caregiver frustration},
	journal = {J. Pediatr.},
	volume = {159},
	number = {3},
	year = {2011},
	month = {Sep},
	pages = {425{\textendash}430},
	author = {Fujiwara, T. and Barr, R. G. and Brant, R. and Barr, M.}
}
