Ultrasound-guided continuous erector spinae plane block vs continuous thoracic epidural analgesia for the management of acute and chronic postthoracotomy pain: a randomized, contro... oleh Ehab Hanafy Shaker, Mamdouh Mahmoud Elshal, Reham Mohamed Gamal, Norma Osama Abdallah Zayed, Samuel Fayez Samy, Raafat M. Reyad, Mohammed H. Shaaban, Abd Alrahman M. Abd Alrahman, Ahmed Salah Abdelgalil