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In vitro expression of Natural Killer Group 2 member D ligands MICA, MICB, ULBP1, 2 and 3 in cerebral metastases in patients with breast cancer. All ligands are expressed at a stable level without any significant differences. MICA, MHC class I chain-related protein A; MICB, MHC class I chain-related protein B; ULBP, UL16-binding protein family.
