Case report of juvenile polyposis/hereditary hemorrhagic telangiectasia syndrome: first report in Korea with a novel mutation in the SMAD4 gene

Ben Kang, Su-Kyeong Hwang, Sujin Choi, Eun Soo Kim, Sang Yub Lee, Chang-Seok Ki, Eun-Hae Cho, Ji-Hyuk Lee, Byung-Ho Choe