Bailey DB, Raspa M, Bishop E, Mitra D, Wheeler A, Sacco P. Health and economic consequences of Fragile X syndrome for caregivers. J Dev Behav Pediatr. 2012 Nov 1;33(9):705-12.
Beach RH, Poulos C, Pattanayak SK. Farm economics of bird flu. Revue Canadienne D'agroeconomie. 2007 Dec 1;55(4):471-83.