Maqbool Hina, Mushtaq Sajid, Hassan Usman, Ahmad Asad Hayat, Sarwar Saud, Sheikh Umer Nisar
Shaukat Khanum Memorial Cancer Hospital and Research Center, Karachi, Pakistan.
J Gastrointest Cancer. 2020 Sep;51(3):1030-1033. doi: 10.1007/s12029-020-00374-3.