--subdivision Analysis under substances or chemicals for works on methods of analyzing these items or analyzing a sample to determine the presence or quantity of these items, and for works presenting the results of analyzing substances not produced naturally, e.g. Concrete--Analysis; Corn--Analysis
--subdivision Inhibitors under individual enzymes and groups of enzymes, e.g. Amylases--Inhibitors; also subdivision Antagonists under other individual chemicals and groups of chemicals, e.g. Insulin--Antagonists; and subdivision Synthesis--Inhibitors under individual chemicals and groups of chemicals, e.g. Insulin--Synthesis--Inhibitors