Comparison of dexmedetomidine, lidocaine, magnesium sulfate, and remifentanil in cough suppression during endotracheal extubation: A double-blind, randomized clinical trial oleh Ehsan Jafarzadeh, Hesameddin Modir, Esmail Moshiri, Farzad Zamani Barsari, Amir Almasi-Hashiani