A recommendation on the appropriate treatment and care of people with a specific disease or condition, based on the best available evidence, designed to help healthcare professionals in their work. A recommendation on the appropriate treatment and care of people with a specific disease or condition, based on the best available evidence, designed to help healthcare professionals in their work. A verbal or written remark concerning some entity. In written form, a comment is often appended to that entity and termed an annotation. Within computer programs or ontologies, comments are added to enhance human understanding, and are usually prefaced by A verbal or written remark concerning some entity. In written form, a comment is often appended to that entity and termed an annotation. Within computer programs or ontologies, comments are added to enhance human understanding, and are usually prefaced by a special syntactic symbol that ensures they are ignored during execution of the program. has super-classes A formal correction to an error introduced by the publisher into a previously published document. A formal correction to an error introduced by the publisher into a previously published document.