Saracatinib is an efficacious clinical candidate for fibrodysplasia ossificans progressiva by Williams, E, Bagarova, J, Kerr, G, Xia, D-D, Place, ES, Dey, D, Shen, Y, Bocobo, GA, Mohedas, AH, Huang, X, Sanderson, PE, Lee, A, Zheng, W, Economides, AN, Smith, JC, Yu, PB, Bullock, AN