TY - JOUR A1 - Raila, Jens A1 - Bok, V. A1 - Buchholz, Ingeborg A1 - Schweigert, Florian J. T1 - Investigations on the excretion of vitamin A as retinol and retinyl esters bound to a high molecular complex Y1 - 1997 UR - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/24628 ER -