bibliographic entry 9876369 [be/9876369]
https://w3id.org/oc/corpus/be/9876369

is a

• bibliographic reference

content

• Willett, WC, Sampson, L, Stampfer, MJ. Reproducibility and validity of a semiquantitative food frequency questionnaire. Am J Epidemiol 1985; 122: 51–65. PMID: 4014201

references

• https://w3id.org/oc/corpus/br/4888845