Measuring points of V1 diameter (dVA) at the lower margins of the C6 transverse foramen.

 
 
  Part of: Spasojević G, Malobabić S, Vujmilović S, Jović D, Vujković Z, Vujnović S (2023) Kinking, coiling and diameters of vertebral artery first segment and their relationships to sex and side. Folia Medica 65(4): 618-624. https://doi.org/10.3897/folmed.65.e84508