@article{RuehlSassNauetal.2001,
  author    = {R{\"u}hl, Ralph and Sass, J{\"o}rn Oliver and Nau, Heinz and Klug, Stephan},
  title     = {Effects of all-trans-retinoic acid and all-trans-retinoyl glucuronide in two in vitro systems of distinct biological complexity},
  year      = {2001},
  language  = {en}
}