81DADFB0-FD77-4CDA-8F4A-F9CFBDCA6C6FDo genetic polymorphisms in a beta-carotene metabolising key enzyme influence dietary Vitamin A requirements?Research GrantBB/G004056/12512EF1C-401B-4222-9869-A770D4C5FAC7BBSRCINCOME_ACTUAL298241E05EBA9B-F48A-4562-9E33-2CAA81CA5DC2A Simple Plasma Retinol Isotope Ratio Method for Estimating ß-Carotene Relative Bioefficacy in Humans: Validation with the Use of Model-Based Compartmental Analysis.The Journal of nutrition98beb1d8e9ab5dd15187d9322b4ba953Ford JL2017-01-01http://dx.doi.org/10.3945/jn.117.25236128747484http://ukpmc.ac.uk/abstract/MED/287474840022-3166http://europepmc.org/abstract/MED/287474841479Journal Article/Review5a35242dae7c89.17702263