TY - RPRT TI - New thin-layer chromatographic solvent systems for separating steroid hormones. AU - A H Duthie AU - K R Simmons AU - B R Urey PY - 1969 DO - 10.1016/s0021-9673(01)92521-x UR - https://pubmed.ncbi.nlm.nih.gov/5344167/ ID - 5344167 ER -