(1)
Sotthibundhu, A.; Buntup, D.; Sanghirun, C.; Cherdchu, K.; Cheeramakara, C.; Chansirikarnjan, S.; Nimkulrat, E.; Udommongkol, C.; Wongmek, W.; Thangnipon, W. Low Serum Vitamin B12 in Alzheimerûs Patients as Detected by a Solid Phase Radioimmunoassay. Siriraj Med J 2008, 60, 66-68.