Vandekerckhove, J., Osborn, M., Altmannsberger, M., & Weber, K. (1987). Actin typing of rhabdomyosarcomas shows the presence of the fetal and adult forms of sarcomeric muscle actin. Differentiation, 36(2), 126-131. doi:10.1111/j.1432-0436.1987.tb00160.x.