Regional Variation of Bitter Taste and Aftertaste in Humans.

"Conflict of interest M.J.H. has no conflicts to disclose. J.E.H. has received speaking and consulting fees from nonprofit organizations, federal agencies, and corporate clients in the food and beverage industries, including the brewing industry. Also, the Sensory Evaluation Center at Penn State routinely conducts taste tests for the food industry to facilitate experiential learning for undergraduate and graduate students. None of these organizations have had any role in study conception, design or interpretation, or the decision to publish these data."

"Funding This work was supported by the Pennsylvania State University, a competitive AFRI (Agriculture and Food Research Initiative) grant from the U.S. Department of Food and Agriculture (grant no. 2019-67011-29500/project accession no. 1019161) and Federal Appropriations (Hatch Project #PEN04708 and Accession # 1019852, and Hatch Project #PEN04565 and Accession # 1002916). The findings and conclusions in this publication are those of the author(s) and should not be construed to represent any official USDA or US Government determination or policy."