@misc{indiciaef74cbfc932aa, title = {[Sonography: a screening method for urinary tract abnormalities?].}, author = {D Weitzel and J Tröger and S Blagojevic and E Straub}, year = {1977}, url = {https://pubmed.ncbi.nlm.nih.gov/876162/}, note = {Source identifier: 876162} }