Design of a digital intervention delivered by WhatsApp to improve the follow-up and prevention of relapses of people who have stopped smoking in the context of a multicomponent programme. Enferm. Cuid. [Internet]. 2023 Oct. 17 [cited 2026 Jun. 3];6(1). Available from: https://enfermeriacuidandote.com/enfermeriacuidandote/article/view/6264