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  1. Knowledge, Preference, and Willingness to Pay for Hepatitis B Vaccination Services among Woman of Reproductive Age in Vietnam
  2. Acceptability of and willingness to pay for using a smartphone-based vaccination application in a Vietnamese cohort
  3. Media representation of vaccine side effects and its impact on utilization of vaccination services in Vietnam
  4. Knowledge, attitude, and practice on and willingness to pay for human papillomavirus vaccine: a cross-sectional study in Hanoi, Vietnam
  5. Preference and willingness to pay for nutritional counseling services in urban Hanoi