About half an hour ago we heard the most extraordinary attack on the reputation of Professor Harvey Risch by the shadow health minister of this country—statements that were a disgrace. What is Professor Risch under attack for? He has said, 'The evidence in favour of hydroxychloroquine benefit in high-risk patients treated as outpatients is stronger than anything else I've studied in my career.' He has 38 years as a professor of epidemiology, and you Labor people are criticising this gentleman without any idea what you're talking about. I have never seen a greater example of groupthink and inability to think.