Luo X, Luo C, Liang S, Wang M, Chen Y, Ji H, Ouyang Q. Application of microfluidic chips to bacterial metapopulations culture by integrating agarose structure. Beijing Daxue Xuebao (Ziran Kexue Ban)/Acta Scientiarum Naturalium Universitatis Pekinensis. 2009;(3):390-394.