@misc{indiciae6d7f944a229a, title = {Profiling urinary steroids. A reliable procedure.}, author = {J F van de Calseyde and R J Scholtis and N A Schmidt and C J Leijten}, year = {1972}, doi = {10.1016/0009-8981(72)90214-8}, url = {https://pubmed.ncbi.nlm.nih.gov/5031774/}, note = {Source identifier: 5031774} }