cyclo(aspartyl-tryptophyl-methionyl-aspartyl-phenylalanyl)
cyclo(aspartyl-tryptophyl-methionyl-aspartyl-phenylalanyl) ??
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cyclo(aspartyl-tryptophyl-methionyl-aspartyl-phenylalanyl) C??? ??, ??, ??
cyclo(aspartyl-tryptophyl-methionyl-aspartyl-phenylalanyl) ?? ?? ? ???
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cyclo(aspartyl-tryptophyl-methionyl-aspartyl-phenylalanyl) ?? ??
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