1. BLUMENTHAL, M., BEST, M., and GALIN, M. (I97 ) Amer. J. Ophthal., 71, 819 and TOYOFUKU, H. (1971) Arch. Ophthal. (Chicago), 86, 71
2. Amer;GITTER, K.; BEST, M.; GALIN, M.;J. Ophthal; Cardiovasc,1970
3. v;GOLDMANN, H.; BLOK, P.;Graefes Arch. klin. exp. Ophthal; Brit,1970
4. Amer;ROOTMAN, J.;Ibid,1971