. . . . . "Irwin Kopin"@en . . . . . . . . . . . . . . . . . . . "41986646"^^ . . . . . . "Irwin J. \"Irv\" Kopin (1929\u20132017) was an American biochemist, best known for his research on the function and metabolism of catecholamines."@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "5729"^^ . "Irwin J. \"Irv\" Kopin (1929\u20132017) was an American biochemist, best known for his research on the function and metabolism of catecholamines."@en . . . . . . . . . . . . . "1042191180"^^ . . . . .