Table 1. Search strategy for MEDLINE/PubMed (via National Library of Medicine), Brazil, 2024.

Search number	Query	Results
1	(Cornea) OR (Corneas)	96 408
2	((((((((((((((((Corneal Transplantation) OR (Transplantation, Cornea)) OR (Keratoplasty)) OR (Keratoplasties)) OR (Cornea Transplantation)) OR (Cornea Transplantations)) OR (Transplantations, Cornea)) OR (Transplantation, Corneal)) OR (Corneal Transplantations)) OR (Transplantations, Corneal)) OR (Grafting, Corneal)) OR (Corneal Grafting)) OR (Graftings, Corneal)) OR (Keratoplasty, Lamellar)) OR (Keratoplasties, Lamellar)) OR (Lamellar Keratoplasties)) OR (Lamellar Keratoplasties))) OR (Penetrating Keratoplasty)	26 542
3	(((((((((((((((((((((Tissue and Organ Procurement) OR (Organ Procurement))) OR (Organ Procurements)) OR (Organ Procurement Systems)) OR (Organ Procurement System)) OR (Tissue Shortage)) OR (Shortage, Tissue)) OR (Tissue Shortages)) OR (Organ Shortage)) OR (Required Organ Donation Request)) OR (Required Request)) OR (Required Requests)) OR (Tissue Donation)) OR (Tissue Donations)) OR (Tissue Procurement)) OR (Tissue Procurements)) OR (Organ Donation)) OR (Organ Donations)) OR (Donor Cards)) OR (Donor Card)) OR (Cornea Donation))) OR (Cornea Shortage))	312 858
4	(((Eye Banks) OR (Bank, Eye)) OR (Banks, Eye)) OR (Eye Bank)	4029
5	S1 AND S2 AND S3 AND S4	493

Research carried out on 27 May 2024 with the ‘all fields’ option.