@misc{indiciaea6790619e772, title = {Comparative study between intra-anal sponge and needle electrode for electromyographic evaluation of constipated patients.}, author = {J Pfeifer and T A Teoh and V D Salanga and F Agachan and S D Wexner}, year = {1998}, doi = {10.1007/bf02239438}, url = {https://pubmed.ncbi.nlm.nih.gov/9749500/}, note = {Source identifier: 9749500} }