Factor VIII gene inversions causing severe hemophilia A originate almost exclusively in mole germ cells - Rossiter, J P; Young, M; Kimberland, M L; Hutter, P; Ketterling, R P; Gitschier, J; Horst, J; Morris, M A; Schaid, D J; de Moerloose, P; Sommer, S S; Kazazian, H H; Antonarakis, S E (Hum Mol Genet, 1994)