Genome-wide analysis identifies a role for common copy number variants in specific language impairment. - Simpson NH; Ceroni F; Reader RH; Covill LE; Knight JC; Hennessy ER; Bolton PF; Conti-Ramsden G; O'Hare A; Baird G; Fisher SE; Newbury DF (European journal of human genetics : EJHG, 2015)