My apologies DXW, I hadn't looked at the link, and hadn't realised that's what you were referring to - you are absolutely right. The article is a classic one published in 1936 about haemoglobin in babies (under 6 months old), and doesn't have any relevance to this thread.
Agreed with all who are pointing out this is highly specialist stuff, which is why I too am only suggesting expert sources to investigate. I'm also happy to explain any techie stuff you find if needed, as that sort of task is a lot of my job.
Last edited by Thames virtual; 2nd Jan 2010 at 13:47.