Boom in food allergies driving physicians nuts

Boom in food allergies driving physicians nuts
http://www.smh.com.au/lifestyle/life/boom-in-food-allergies-driving-physicians-nuts-20120515-1yp40.html

"IT WAS once a staple of the lunchbox but the humble peanut butter sandwich is increasingly being shunned from school lunches as the number of children, especially preschoolers, with allergies continues to rise significantly."