title: Synthesis and use of stable isotope enriched retinals in the field of vitamin A.
authors.affiliation: Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands. p.b.s.dawadi@gmail.com
authors.forename: Prativa B S
authors.initials: PB
authors.lastname: Dawadi
authors.forename: Johan
authors.initials: J
authors.lastname: Lugtenburg