The use of financial incentives for smoking cessation in pregnant women: A parallel‐group randomised controlled trial protocol. - Hammersley, Megan L.; Dekker, Gustaaf A.; Gurrin, Lyle C.; Hoon, Elizabeth A.; Schurer, Stefanie; Lynch, John W.; Aldred, Marnie; Dalton, Julia; Fletcher, Cherise J.; Smithers, Lisa G. (Addiction, 2025)