One more shot of AB positive blood

 Mosquito Bar - Happy Hour

Read more:
130. Declare War on Mosquitoes 

Source: 365 Market place
Image credits: Lizluby

Art and Science of Laboratory Medicine

Facebook: www.facebook.com/LaboratoryEQAS

Twitter: LaboratoryEQAS

Pinterest: http://pinterest.com/labmed/medical-laboratory-and-biomedical-science/