A RCT Evaluating an Online Intervention in Increasing Pneumococcal Vaccination Among Older Adults

Condition:   Vaccination Refusal Interventions:   Behavioral: Chatbot-delivered interventions tailored to stage of changes;   Behavioral: Chatbot-delivered standard interventions Sponsor:   Chinese University of Hong Kong Not yet recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials