The cell population 10, wherein {HEAD ~ the bead} is formed at an alginate concentration of {TAIL ~ about 2.0%}  
The cell population 10 , wherein { HEAD ~ the bead } is formed at an alginate concentration of { TAIL ~ about 2.0 % }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH