@article{GiatrasWanninkhofLeontowitschetal.2017,
  author    = {Nikoletta Giatras and Elisabeth Wanninkhof and Miranda Leontowitsch and Beth Lewis and Adrian Taylor and Sue Cooper and Michael Ussher},
  title     = {Lessons learned from the London Exercise and Pregnant (LEAP) Smokers randomised controlled trial process evaluation: implications for the design of physical activity for smoking cessation interventions during pregnancy},
  journal   = {BMC public health},
  volume    = {17},
  number    = {85},
  pages     = {1 -- 11},
  doi       = {10.1186/s12889-017-4013-5},
  year      = {2017},
}