Child immunization--what are the impediments for reaching desired goals in a transitional society?
D000328:Adult; D001294:Attitude to Health; D002675:Child, Preschool; D003710:Demography; D003906:Developing Countries; D005260:Female; D006801:Humans; D007114:Immunization; D008875:Middle Aged; D009549:Nigeria; D012923:Social Class; D012959:Socioeconomic Factors