Letter to the Editor
Diagnostic accuracy of Doppler ultrasonography for assessment of internal thoracic artery graft patency
1Sanitation 1 Medical Academic Center, Bangkhae, Bangkok-Thailand
2Hainan Medical University, China; University of Nis, Serbia; Joseph Ayobabalola University-Nigeria
2Hainan Medical University, China; University of Nis, Serbia; Joseph Ayobabalola University-Nigeria