Dr Guan has recently be selected to be an external examiner for a student from Mahidol University going into the Ph.D. programme in Bio-medical Engineering with a sub-specialization in neurofeedback.
![Mahidol University invitation letter to Dr Guan](https://www.bec-eeg.com/wp-content/uploads/2013/05/mahidol-university-invitation-letter.jpg)
Mahidol University invitation letter to Dr Guan
Here are some photos:
![Tle at the start of his PhD oral exam](https://www.bec-eeg.com/wp-content/uploads/2013/05/tle-at-the-start-of-his-phd-oral-exam.jpg)
Tle at the start of his PhD oral exam
![Tle explaining bio-medical concepts to committee](https://www.bec-eeg.com/wp-content/uploads/2013/05/tle-explaining-bio-medical-concepts-to-committee.jpg)
Tle explaining bio-medical concepts to committee
![Successful ending his oral exam with committee](https://www.bec-eeg.com/wp-content/uploads/2013/05/successful-ending-his-oral-exam-with-committee.jpg)
Successful ending his oral exam with committee