Commentary: When 'No Difference' Is Actually a Big Difference

Affiliations

• ¹ Heart Centre for Children, The Children's Hospital at Westmead, Westmead, New South Wales, Australia.
• ² Heart Centre for Children, The Children's Hospital at Westmead, Westmead, New South Wales, Australia; Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia. Electronic address: david.winlaw@sydney.edu.au.