Fruit and vegetable intake assessed by food frequency questionnaire and plasma carotenoids: a validation study in adults

- Burrows, Tracy L., Hutchesson, Melinda J., Rollo, Megan E., Boggess, May M., Guest, Maya, Collins, Clare E.

Validation of overweight children's fruit and vegetable intake using plasma carotenoids

- Burrows, Tracy L., Warren, Janet M., Colyvas, Kim, Garg, Manohar L., Collins, Clare E.