@article{cinelli:pea18-r479,
  author = 	 "Cinelli, C.\ and Pearl, J.",
  title = 	 "On the utility of causal diagrams in modeling attrition:
  a practical example",
  journal = 	 "International Journal of Epidemiology",
  year = 	 2018,
  volume =	 "29",
  issue =	 "6",
  pages = 	 "e50--e51",
  year = 	 2018
}