Portable two-color in vivo flow cytometer for real-time detection of fluorescently-labeled circulating cells.
                             
                            
                            
                                
                            
                            
                                
                            
                            
                            
                                
                                    
                                            
    Boutrus S, Greiner C, Hwu D, Chan M, Kuperwasser C, Lin CP, Georgakoudi I. Portable two-color in vivo flow cytometer for real-time detection of fluorescently-labeled circulating cells. J Biomed Opt. 2007 Mar-Apr; 12(2):020507.