Two millimeters per inch.
Riess
Matthias L
ML
Connolly
Lois A
LA
Woehlck
Harvey J
HJ
D001794:Blood Pressure / Q000502:physiology*; D001795:Blood Pressure Determination / Q000379:methods; D002560:Cerebrovascular Circulation / Q000502:physiology*; D006801:Humans; D006874:Hydrostatic Pressure; D011187:Posture / Q000502:physiology