@misc{indiciae34df468c4d9d,
  title = {Some steps in the process of program planning.},
  author = {M R NATHAN},
  year = {1956},
  doi = {10.2105/ajph.46.1.68},
  url = {https://pubmed.ncbi.nlm.nih.gov/13275631/},
  note = {Source identifier: 13275631}
}