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Subentry Levels 

Subentry Levels
Medical Indexes

Bruce McGregor

and Harriet S. Meyer

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date: 29 January 2020

Tullar recommends using more main entries or first-level subentries rather than going beyond a third level of subentry, as in this example, adapted from Tullar: Not: cancer  treatment of   pharmacologic    cyclophosphamide for     adverse effects of      thrombocytopenia Preferred: cancer  treatment of   pharmacologic   See also individual drugs chemotherapy  adverse effects of   See also individual drugs cyclophosphamide  adverse effects of   thrombocytopenia from drug-induced disorders  from cyclophosphamide  thrombocytopenia thrombocytopenia  from cyclophosphamide  drug-induced Even when a main heading cites the entire page range of the discussion of a particular topic, it is useful to include subtopics as subentries so that the reader is aware that

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