Pitinuch Piochai และ Korbtham Sathirakul. (2010) Determination of fentanyl in human plasma with liquid phase extraction followed by HPLC method and its application to anesthesia in coronary artery bypass graft study. Mahidol University:ม.ป.ท.Pitinuch Piochai และ Korbtham Sathirakul. 2010. Determination of fentanyl in human plasma with liquid phase extraction followed by HPLC method and its application to anesthesia in coronary artery bypass graft study. ม.ป.ท.:Mahidol University;Pitinuch Piochai และ Korbtham Sathirakul. Determination of fentanyl in human plasma with liquid phase extraction followed by HPLC method and its application to anesthesia in coronary artery bypass graft study. ม.ป.ท.:Mahidol University, 2010. Print.