28-DAYS ORAL DOSE TOXICITY STUDY OF A PURIFIED PENTABDE MIXTURE DERIVED FROM DE-71 IN WISTAR RATS: EVALUATION OF FEMUR LENGTH AND DENSITY AND APOLAR LIVER RETINOID LEVELS Publication Attachment: 06-349.pdf Authors: Litens, S, Lyrenäs, L, van der Ven, LT, Håkansson, H Year: 2006