@article {pmid20854664,
	title = {Designing and implementing a longitudinal study of children with neurological, genetic or metabolic conditions: charting the territory},
	journal = {BMC Pediatr},
	volume = {10},
	year = {2010},
	pages = {67},
	author = {Siden, H. and Steele, R. and Brant, R. and Cadell, S. and Davies, B. and Straatman, L. and Widger, K. and Andrews, G. S.}
}
