The expanded program of immunization in the Philippines :   areas for policy and systems research / 
Marilla G. Lucero, Veronica L. Tallo 
 - Manila :  Essential National Health Research Program, DOH,  1998. 
 - HPSR monograph ;  no. 6 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Immunization Programs