6.4.1 Designing search strategies – an introduction
6.4.2 Structure of a search strategy
6.4.3 Service providers and search interfaces
6.4.4 Sensitivity versus precision
6.4.5 Controlled vocabulary and text words
6.4.6 Synonyms, related terms, variant spellings, truncation and wildcards
6.4.7 Boolean operators (AND, OR and NOT)
Figure 6.4.a: Combining concepts as search sets
6.4.8 Proximity operators (NEAR, NEXT and ADJ)
6.4.9 Language, date and document format restrictions
6.4.10 Identifying fraudulent studies, other retracted publications, errata and comments
6.4.13 Demonstration search strategies
Box 6.4.e: Demonstration search strategy for CENTRAL, for the topic ‘Tamoxifen for breast cancer’