Fig. 7From: Osteogenic stimulation of osteoprogenitors by putamen ovi peptides and hyaluronic acidExtinction of stained calcium ions for determination of the cell-bound calcium after 4 weeks at a starting population of 60,000 cells/cm2 (normalized to the value "1" of the control culture). Calcium concentration factors of the groups: EP I: 2.9; EP II: 81.64; HAEP: 285.81 are integrated in the bars of the groupsBack to article page