TY - RPRT TI - Comparison of two frequency questionnaires for quantifying fruit and vegetable intake. AU - S Amanatidis AU - D Mackerras AU - J M Simpson PY - 2001 DO - 10.1079/phn200094 UR - https://pubmed.ncbi.nlm.nih.gov/11299096/ ID - 11299096 ER -