@article{SchmiedchenLongardtLouietal.2016,
  author    = {Bettina Schmiedchen and Ann Carolin Longardt and Andrea Loui and Christoph Buehrer and Jens Raila and Florian J. Schweigert},
  title     = {Effect of vitamin A supplementation on the urinary retinol excretion in very low birth weight infants},
  journal   = {European journal of pediatrics : official organ of the Belgian Pediatric Association},
  volume    = {175},
  pages     = {365 -- 372},
  doi       = {10.1007/s00431-015-2647-9},
  year      = {2016},
}