Electronic nudges for sustained influenza vaccination uptake in older adults: the nationwide randomized NUDGE-FLU-2 trial

Niklas Dyrby Johansen, Muthiah Vaduganathan, Ankeet S Bhatt, Daniel Modin, Safia Chatur, Brian L Claggett, Kira Hyldekær Janstrup, Carsten Schade Larsen, Lykke Larsen, Lothar Wiese, Michael Dalager-Pedersen, Lars Køber, Scott D Solomon, Pradeesh Sivapalan, Jens Ulrik Stæhr Jensen, Cyril Jean-Marie Martel, Tyra Grove Krause, Tor Biering-Sørensen^*