@misc{indiciae10d8827859bd, title = {[Endoscopy - an exact morphologic diagnosis, but questionable functional evidence. Concurrent morphologic and functional diagnostic procedures (III)].}, author = {K Rüttenauer and W Fleig}, year = {1980}, url = {https://pubmed.ncbi.nlm.nih.gov/7467759/}, note = {Source identifier: 7467759} }