Prog Rock -- See Progressive rock music This heading is assigned to progressive rock music for two or more performers. --headings for music of individual instruments followed by the qualifier "(Progressive rock)" and the subdivisions Methods (Progressive rock) and Studies and exercises (Progressive rock) under individual musical instruments and families of instruments
--subdivision Diagnosis under individual diseases, e.g. Cancer--Diagnosis; also subdivision Diseases--Diagnosis under individual organs and regions of the body, e.g. Heart--Diseases--Diagnosis; and subdivision Diagnostic use under compounds and agents used in diagnosing diseases, e.g. Copper--Diagnostic use
Program Files Computer -- See Computer programs Here are entered works limited to computer programs. General works on computer programs accompanied by documentation such as manuals, diagrams and operating instructions, etc. are entered under Computer software. --subdivision Computer programs under topical headings; and uniform titles of individual computer programs
