61. Cooper J., Feldman J., Selenow A., Fair R., Bucceiro F., MacDonald D., Levy M., Reduction of asthenopia after accommodative facility training, Am J Optom Physiol Opt 1987;64:430-436.

61. Cooper J., Feldman J., Selenow A., Fair R., Bucceiro F., MacDonald D., Levy M., Reduction of asthenopia after accommodative facility training, Am J Optom Physiol Opt 1987;64:430-436.