@misc{indiciae3095ed7b687a, title = {Qualitative research.}, author = {R Fitzpatrick and M Boulton}, year = {1996}, doi = {10.1016/s0140-6736(05)64639-9}, url = {https://pubmed.ncbi.nlm.nih.gov/8676691/}, note = {Source identifier: 8676691} }