@article{sheaff_1912, 
  title={A SIMPLE AND PRECISE METHOD OF DIFFERENTIAL LEUKOCYTE COUNTING WHERE THE WHITE CELLS ARE GREATLY INCREASED}, 
  volume={LVIII}, 
  DOI={10.1001/jama.1912.04260060290013}, 
  number={25}, 
  publisher={American Medical Association (AMA)}, 
  author={Sheaff}, 
  year={1912}, 
  month={Jun}
  }