Toxic Agents Responsible for Acute Poisonings Treated at Four Medical Settings in Iran during 2012-2013: A Report from Iran's National Drug and Poison Information Center oleh Talat Ghane, Yasna Behmanesh, Anahita Alizadeh Ghamsari, Mina Amini, Fatemeh Siavashian, Atieh Yazdani-Rostam, Simin Mahdavi, Nader Haghi, Abdolkarim Pajoomand, Shahin Shadnia, Hossein Hassanian-Moghaddam, Mitra Rahimi, Nasim Zamani, Fardin Khazaei