Effectiveness of the influenza and Tdap vaccination educational module (InTroDuce-Programme) on knowledge and intention for antenatal vaccination: A cluster randomised controlled trial protocol among pregnant women in Malaysian primary care clinics - Hung Chiun Lau; Zamberi Sekawi; Siew Mooi Ching; Norhasliza Abu Bakar; Rahmat Dapari; Siti Rohani Mohamed Alias; Nor Hazlin Talib; Izzah Hazwani Dzulkifli; Nadiah Md Alwi; Habibah Abdul Hamid; Hazwan Mat Din (PLoS ONE, 2026)