title: Diffusion of progesterone through intrauterine silastic rubber implants.
mesh_terms: D000818:Animals; D002214:Capsules; D003270:Contraceptive Agents / Q000008:administration & dosage*; D003692:Delayed-Action Preparations; D004058:Diffusion; D005260:Female; D011374:Progesterone / Q000008:administration & dosage*; D011817:Rabbits; D012826:Silicone Elastomers; D014316:Tritium; D014599:Uterus
chemical_list: D002214:Capsules; D003270:Contraceptive Agents; D003692:Delayed-Action Preparations; D012826:Silicone Elastomers; D014316:Tritium; D011374:Progesterone