@misc{indiciae57d36c0c93dd, title = {An improved sampling device for cervical cytology.}, author = {E Wachtel and H Gordon}, year = {1974}, doi = {10.1016/s0140-6736(74)91354-3}, url = {https://pubmed.ncbi.nlm.nih.gov/4134412/}, note = {Source identifier: 4134412} }