{HEAD ~ A test device} and method are provided for determining {TAIL ~ the hemoglobin content} of blood 
provided for determining
{ HEAD ~ A test device } and method are provided for determining { TAIL ~ the hemoglobin content } of blood
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH