| Literature DB >> 4474842 |
E M Widdowson, D A Southgate, Y Schutz.
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Year: 1974 PMID: 4474842 PMCID: PMC1649233 DOI: 10.1136/adc.49.11.867
Source DB: PubMed Journal: Arch Dis Child ISSN: 0003-9888 Impact factor: 3.791