Eye on the ball: an interview with Dr. C. Stephen Johnson and Mark McGwire. Interview by J. David Kopp.
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D001251:Astigmatism / Q000150:complications*; D001484:Baseball; D003261:Contact Lenses; D003867:Depth Perception; D005139:Eyeglasses; D006801:Humans; D009216:Myopia / Q000150:complications*; D010817:Physician-Patient Relations; D015354:Vision, Low / Q000209:etiology / Q000628:therapy*; D014792:Visual Acuity