Do not narrow your focus: systematic optical evaluation is required

Affiliations

• ¹ Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, New South Wales, Australia; University of Sydney, Westmead Clinical School, Sydney, New South Wales, Australia; Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
• ² Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, New South Wales, Australia; University of Sydney, Westmead Clinical School, Sydney, New South Wales, Australia.
• ³ Department of Gastroenterology and Hepatology, Westmead Hospital, Sydney, New South Wales, Australia.