FGFR1 and Hartsfield-Bixler-Demyer syndrome: 6 Simonis Simonis N N Migeotte Migeotte I I Lambert Lambert N N Perazzolo Perazzolo C C Silva Silva DC DC Dimitrov Dimitrov B B FGFR1 mutations cause Hartsfield syndrome, the unique association of holoprosencephaly and ectrodactyly FGFR1 mutations cause Hartsfield syndrome, the unique association of holoprosencephaly and ectrodactyly J Med Genet J Med Genet 2013 2013 50 50 585 585 592 592 23812909 23812909