Prof. Dr. med. Yay Chantana is head physician of the hospital Jayavarman VII in Siem Reap of the Kantha Bopha foundation. Prof. Chantana studied medicine at the university in Phnom Penh and participated already as a student in 1992 at the reconstruction of Kantha Bopha 1, the first hospital of Dr. Beat Richner in Cambodia. He is working as a doctor since 1993 at the Kantha Bopha Hospital, first in Phnom Penh and moved to Siem Reap in 1999 when Dr. Beat Richner did open his third hospital near the temple of Angkor Wat. Prof. Chantana is in charge of staff of 1’248 employees (937 medical and 309 non medical). The Jayavarman VII hospital has 31 sections, 833 beds for children inpatients, a maternity with 153 beds, a surgery and a heart operation center.