Krawczyk, M., Wolska, M., Schwartz, S., Gruenhage, F., Terjung, B., Portincasa, P., Sauerbruch, T. and Lammert, F. (2008) “Concordance of Genetic and Breath Tests for Lactose Intolerance in a Tertiary Referral Centre”, Journal of Gastrointestinal and Liver Diseases, 17(2), pp. 135-139. Available at: https://www.jgld.ro/jgld/index.php/jgld/article/view/2008.2.1 (Accessed: 23July2024).