Table 2.

Indexed terms selection strategy.

	Natural Language	CINAHL-Indexed Terms	MEDLINE-Indexed Terms
Population	Patient Head and neck neoplasms	MM “Cancer Patients” MM “Head and Neck Neoplasms”
Concept	Nursing care Office nursing	MM “Nursing Interventions” MM “Nursing Practice” MM “Advanced Nursing Practice” MM “Office Nursing”
Context	Operating rooms Preoperative care	MM “Preoperative Education” MM “Patient Education” MM “Preoperative Care” MH “Preoperative Period” MM “Operating Rooms” MM “Perioperative Nursing”	MM “Preoperative Care” MM “Preoperative Period” MM “Patient Education as Topic” MM “Operating Room Nursing” MM “Operating Rooms”