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TABLE 2: 
Distribution of severe (≥70%) stenosis, single versus multiple stenosis
Group and LocationNo. of Lesions
Single stenosis56
 Intracranial37 (66)
  M116
  PICA7
  VA4
  P1–34
  M22
  A21
  ACHA1
  BA1
  AICA1
 Extracranial19 (34)
  ICA14
  VA4
  SA1
Multiple stenosis333
 Intracranial166 (50)
  M142
  A124
  VA23
  P1–319
  ICA15
  BA11
  M2 8
  A25
  VBJ7
  PICA7
  AICA3
  P41
  SCA1
 Extracranial167 (50)
  ICA102
  VA57
  SA7
  CCA1
  • Note.—Data in parentheses are percentages. Abbreviations are defined in the footnote for Table 1.