[1] JICA Cambodia Off, JICA Project Improving Maternal & Child Hlth Serv, Phnom Penh, Cambodia
[2] Univ Tokyo, Dept Global Hlth Policy, Sch Int Hlth, Fac Med,Bunkyo Ku, Tokyo 1130033, Japan
[3] Japan Int Cooperat Agcy, Dept Human Dev, Chiyoda Ku, Tokyo 1028012, Japan
[4] George Washington Univ, Dept Global Health, Sch Publ Hlth & Hlth Serv, Med Ctr, Washington, DC USA
[5] Minist Hlth, Natl Maternal & Child Hlth Ctr, Khan Daun Penh, Phnom Penh, Cambodia
[6] Minist Hlth, Natl Reprod Hlth Program, Khan Daun Penh, Phnom Penh, Cambodia
[7] TAC Int Inc, Chuo Ku, Tokyo 1040061, Japan