| Literature DB >> 3042696 |
C L Ludwig, J W Stiller, P J Burns, T M Phillips.
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Year: 1988 PMID： 3042696 DOI： 10.1111/j.1526-4610.1988.hed2805332.x
Source DB: PubMed Journal: Headache ISSN： 0017-8748 Impact factor: 5.887