@article {modell2001national,
	title = {A national register for surveillance of inherited disorders: beta thalassaemia in the United Kingdom},
	journal = {Bulletin of the World Health Organization},
	volume = {79},
	number = {11},
	year = {2001},
	pages = {1006{\textendash}1013},
	publisher = {World Health Organization Genebra, Genebra, Switzerland},
	author = {Modell, Bernadette and Khan, Maren and Darlison, Matthew and King, Anita and Layton, Mark and Old, John and Petrou, Mary and Varnavides, Lysandros}
}