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OTL38. Chemical structure; folate motif (ligand) and linker in black, S0456 (dye) in green (A). Intraoperative detection of ovarian cancer metastases with OTL38 administered 2-3 h prior to surgery: white-light only (B), NIRF only (C) and white-light with NIRF overlay (D). Panels (B–D) are adapted from (30) with permission.
