TY - GEN AU - ROTHCHILD,I TI - The use of collodion ultrafiltrates of human urine for steroid determinations SN - 0013-7227 PY - 2003///0501 KW - Body Fluids KW - Collodion KW - Pregnanediol KW - urine KW - Progestins KW - Steroids KW - Urine N1 - Publication Type: Journal Article UR - https://doi.org/10.1210/endo-52-2-238 ER -