Journal Article
Davaalkham, Dambadarjaa, Toshiyuki Ojima, Ritei Uehara, Makoto Watanabe, Izumi Oki, Steven Wiersma, Pagvajav Nymadawa, and Yosikazu Nakamura.
"Impact of the universal hepatitis B immunization program in Mongolia: achievements and challenges." Journal of epidemiology 17, no. 3 (2007): 69-75.