Prognostic factors for esophageal squamous cell carcinoma--a population-based study in Golestan Province, Iran, a high incidence area. oleh Karim Aghcheli, Haji-Amin Marjani, Dariush Nasrollahzadeh, Farhad Islami, Ramin Shakeri, Masoud Sotoudeh, Behnoush Abedi-Ardekani, Mohammad-Reza Ghavamnasiri, Ezzatollah Razaei, Elias Khalilipour, Samira Mohtashami, Yasha Makhdoomi, Rabea Rajabzadeh, Shahin Merat, Rasoul Sotoudehmanesh, Shahryar Semnani, Reza Malekzadeh