title: Theory of controlled release of biologically active substances.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D003692:Delayed-Action Preparations; D004058:Diffusion; D004305:Dose-Response Relationship, Drug; D006207:Half-Life; D006868:Hydrolysis; D007700:Kinetics; D008433:Mathematics; D012995:Solubility; D013499:Surface Properties; D013997:Time Factors
chemical_list: D003692:Delayed-Action Preparations