@misc{indiciae9ec346dac165, title = {Is obstetric progress dependent on rigorous randomized controlled trials?}, author = {R C Goodlin}, year = {1990}, doi = {10.1016/0002-9378(90)90076-j}, url = {https://pubmed.ncbi.nlm.nih.gov/2187362/}, note = {Source identifier: 2187362} }