TY - GEN AU - Toft,P AU - Liston,A J TI - Mass spectral studies on some steroidal delta-4- and delta-5-3-ketals SN - 0039-128X PY - 1968///1220 KW - Methods KW - Spectrum Analysis KW - Steroids N1 - Publication Type: Journal Article UR - https://doi.org/10.1016/s0039-128x(68)80108-4 ER -