%0 Journal Article %T Lateral Tissue Inhomogeneity: A Missing Link in Photoplethysmographic Noninvasive Measurement of Arterial Blood Constituents %A Sodickson, Lester, A %J Clinical Chemistry %V 45 %N 9 %P 1687-1689 %@ 0009-9147 %D 1999-09-01 %I Oxford Academic %~ DeepDyve