title: Measurement of progesterone receptors in human breast tumors: comparison of various methods of analysis.
mesh_terms: D001943:Breast Neoplasms / Q000032:analysis*; D002499:Centrifugation, Density Gradient; D003600:Cytosol / Q000378:metabolism; D005260:Female; D006801:Humans; D008722:Methods; D011397:Promegestone / Q000378:metabolism; D011980:Receptors, Progesterone / Q000032:analysis* / Q000378:metabolism; D012044:Regression Analysis
chemical_list: D011980:Receptors, Progesterone; D011397:Promegestone