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American Journal of Optometry and Physiological Optics|October 1, 1976
Instrument myopia--microscopyO W RichardsThe Journal of the Royal College of General Practitioners|November 1, 1976
The cost of a general practitioner in the national health serviceC W RichardsEducation for Health (Abingdon, England)|January 27, 2004
Best practices in community-oriented health professions education: international exemplarsR W RichardsJournal of the American Optometric Association|June 1, 1983
Limited improvement of color deficient vision with colored filtersO W RichardsJournal of the Experimental Analysis of Behavior|May 1, 1974
Inhibitory stimulus control and the magnitude of delayed reinforcementR W RichardsJournal of the Experimental Analysis of Behavior|March 1, 1981
A comparison of signaled and unsignaled delay of reinforcementR W RichardsAmerican Journal of Optometry and Physiological Optics|March 1, 1977
Effects of luminance and contrast on visual acuity, ages 16 to 90 yearsO W RichardsHealth Physics|April 14, 1999
Prediction of in vivo background in phoswich lung count spectraN W RichardsThe Journal of General Physiology|October 30, 2009
POTENTIALLY UNLIMITED MULTIPLICATION OF YEAST WITH CONSTANT ENVIRONMENT, AND THE LIMITING OF GROWTH BY CHANGING ENVIRONMENTO W RichardsOphthalmic Surgery|December 1, 1993
Intracameral tissue plasminogen activator to treat blocked glaucoma implantsD W RichardsPageof 49