Issues in assessing the validity of nutrient data obtained from a food-frequency questionnaire: folate and vitamin B12 examples
| Image |  |
|---|---|
| Description | scientific article |
| Author/s |
author: Paul Mitchell Victoria M Flood |
| Publication date | September 1, 2004 |
| Language | English |
| Country of origin | |
| Wikipedia link | |
| Copyright status | |
| Missing/wrong data? | Edit Wikidata item |