Hon Dr AYESHA VERRALL: The evaluation of an environmental exposure with a public health outcome is incredibly complex and usually requires evaluating multiple different features of the evidence. I continue to ask the Ministry of Health to review that. I do note that two other university epidemiologists, in relation to this issue, have also tried to contextualise the scale of the risk here. For example, Professor Brian Cox said, "At this stage, there is no cause for alarm. Even those drinking nitrate-rich water, the risk is small compared to eating a high diet in processed meat." Professor Michael Baker said, "We need to have a reasonable sense of proportion. The evidence is on the weaker end of the spectrum, and the association does not necessarily mean causation."