well I pulled it up and read it.  It was all about how different elements in human milk change over the span of lactation.  For instance protein declines over the first 6 mo  to  a stable level, then as weaning begins the protein levels increase.  They also looked at research on zinc, calcium, iron and copper.  The reason for the comparisons was to determine if milk from a mom, whose baby is over 1 year would be suitable to express for preterm, fragile infants.  And there needs to be more research to show if mom's milk beyond one year still has enough nutrition to be expressed  for a preterm infant.  There is also a  list rules from different milk banks  for accepting donor milk.  They stated there needs to be more research as most of the available studies are 20-40 years old!  There is a whole list of possible ideas for research.  The other point is, if banks would accept milk from mothers, whose babies are 1 year +, then more milk would be available to milk banks. Thanks for making me read this!  It was interesting.  Pat in SNJ

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