. . . "Eykman" . "Eijkman" . . "1899" . "EYKMAN" . "J.C.B" . "Johannes Constant Borghardt Eijkman" . "Johannes Constant Borghardt Eijkman"@fr-FR . . "J.C.B." . "J.C.B. Eykman"@nl-NL . . "J.C.B. Eijkman" . "J. C. B. Eijkman" . "J. C. B. Eijkman" . "Eykman, J.C.B. (Johannes Constant Borghardt)" . "Eykman, J. C. B. (Johannes Constant Borghardt)" . "C. B." . "J." . "Johannes Constant Borghardt Eykman"@pl-PL . "Johannes" . . "J. C. B. Eykman" . "J.C.B Eykman" . . . "J. C. B. EYKMAN" . "Constant Borghardt" .