Fig. 1
From: Cell-free microRNA-21: biomarker for intracranial aneurysm rupture
Diagram of 4 groups. a Angiography negative group (control group). b Aneurysm without daughter aneurysm group (relatively low-rupture risk group). c Aneurysm with daughter aneurysm group (relatively high-rupture risk group). d Ruptured aneurysm group