@misc{indiciaecd2a2f5ec07e,
  title = {Nursing research: obstacles and challenges. 1976.},
  author = {I M Martinson},
  year = {1997},
  doi = {10.1111/j.1547-5069.1997.tb01044.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/9433002/},
  note = {Source identifier: 9433002}
}