@misc{indiciae89b9cd474618, title = {Polyacrylamide as a substitute for cervical mucus in sperm migration tests.}, author = {S P Lorton and H L Kummerfeld and R H Foote}, year = {1981}, url = {https://pubmed.ncbi.nlm.nih.gov/7202747/}, note = {Source identifier: 7202747} }