Ruangma, A., S. Panpitpat, T. Saonam, S. Kijprayoon, S. Ngokpol, M. Tanasirimanon, S. Khajitkhajonwong, S. Tuamputsa, S. Rachadara, and Y. Chinvarun. “Challenges in Production of Alzheimer’s Tracer C-11 PiB”. The Bangkok Medical Journal, Vol. 9, no. 1, Oct. 2019, p. 70, doi:10.31524/bkkmedj.2015.02.015.