A combined visual and astigmatic test-card
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{"created":"2022-01-31T16:46:48.989829+00:00","id":"lit35797","links":{},"metadata":{"alternative":"Journal of the American Medical Association","contributors":[{"name":"Little, William S.","role":"author"}],"detailsRefDisplay":"Journal of the American Medical Association: 8","identifier":"lit35797","issued":"1884","pages":"8","startpages":"8","title":"A combined visual and astigmatic test-card","type":"Journal Article"},"revision":0,"updated":"2022-01-31T16:46:48.989834+00:00"}