PubMed | |
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# 1: Head and neck cancers [MH] OR head and neck neoplasms [tiab] OR oral cancers [MH] OR upper aerodigestive tract cancers [MH] OR cancer of tongue [tiab] OR cancer of oropharynx [tiab] OR cancer of hypopharynx [tiab] # 2: Dental visits [MH] OR visits the dentist [tiab] OR dental check-ups [tiab] OR dental examination [tiab] OR dental treatment [tiab] OR dental care [tiab] OR oral hygiene [tiab] OR periodontitis [tiab] | |
#1 and #2 |