Chocholova A, Soltysova A, Minarik G, Cierna I, Sufliarska S, Mladosievicova B. Thiopurine S-Methyltransferase gene polymorphisms in a healthy Slovak population and pediatric patients with inflammatory bowel disease. Nucleosides Nucleotides Nucleic Acids. 2013;32(5):239–46. doi: 10.1080/15257770.2013.776685. PMID: 23581716.