Validity of an illness severity measure for headache in a population sample of migraine sufferers
Walter F. Stewart, Richard B. Lipton, David Simon, Joshua Liberman, Michael Von KorffVolume:
79
Year:
1999
Language:
english
DOI:
10.1016/s0304-3959(98)00181-x
File:
PDF, 335 KB
english, 1999