Clinical diagnosis of a double primary sigmoid colon cancer and metastatic tumour using a gene‐targeted panel test: a case report. Issue 11 (25th April 2020) - Sasaki, Kazuhito; Fukui, Risa; Hata, Keisuke; Nozawa, Hiroaki; Ushiku, Tetsuo; Aburatani, Hiroyuki; Mano, Hiroyuki; Ishihara, Soichiro