Response to letter to editor for 'Quantifying alcohol consumption in the general population by analyzing phosphatidylethanol concentrations in whole blood: results from 24 574 subjects included in the HUNT4 study'...Ulwelling W. Regarding “quantifying alcohol consumption in the general population by analyzing phosphatidylethanol concentration in whole blood: results from 24 574 subjects included in the HUNT study.” Alcohol & Alcoholism. 2023;58(4):451.