کد فایل 1228624
قیمت: 59٬000 تومان
بنام خدا بیهوش کننده های عمومی جراحی قبل از بیهوشی تاریخچه Joseph Priestly – discovers N2O in 1773 General anesthesia was absent until the mid-1800’s William Morton administered ether to a patient having a neck tumor removed at the Massachusetts General Hospital, Boston, in October 1846. Chlorofo