@misc{indiciae5246aea5e235, title = {Mittelschmerz. Sonographic demonstration.}, author = {L E Hann and D A Hall and E B Black and J T Ferrucci}, year = {1979}, doi = {10.1001/jama.241.25.2731}, url = {https://pubmed.ncbi.nlm.nih.gov/448821/}, note = {Source identifier: 448821} }