@article{8c26ad2169374640a018e7318047d539,
  title   = "What is an adequate sample size?",
  author  = "Francis, {Jill J.} and Marie Johnston and Clare Robertson and Liz Glidewell and Vikki Entwistle and Eccles, {Martin P.} and Grimshaw, {Jeremy M.}",
  year    = "2010",
  volume  = "25",
  number  = "10",
  pages   = "1229--1245",
  journal = "Psychology and Health",
  issn    = "0887-0446",
}