@article{ab63798fc72149e39e4868308fa9b460,
title = "Retinol equivalency ratio of β-carotene",
author = "Russell, {Robert M.} and Ross, {A. Catharine} and Trumbo, {Paula R.} and West, {Keith P.} and West, {Clive E.} and Ans Eilander and {Van Lieshout}, Machteld",
year = "2003",
month = sep,
day = "1",
doi = "10.1093/jn/133.9.2915",
language = "English (US)",
volume = "133",
pages = "2915--2917",
journal = "Journal of Nutrition",
issn = "0022-3166",
publisher = "American Society for Nutrition",
number = "9",
}