Marker for variable size square keratoplasties.
D015415:Biomarkers; D016039:Corneal Transplantation / Q000600:supply & distribution*; D004864:Equipment and Supplies; D006801:Humans; D009885:Ophthalmology / Q000600:supply & distribution*
D015415:Biomarkers
CORNEAL TRANSPLANTATION/equipment and supplies; OPHTHALMOLOGY/equipment and supplies