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Do two searches mapped to Subject Heading (one for "Radiography, Dental" and one for "Pregnancy"), and then combine the two searches using "AND"
Imagine you are doing research on dental radiography during pregnancy or
breastfeeding. You do three separate searches mapped to Subject Heading (one for
"Radiography, Dental", one for "Pregnancy", and one for "Breast
Feeding"). How should you then combine the three searches?
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