Hi Alicia, I called Jan at 316 682-0744. Kathy Auerbach gave me her number. She said she is constantly refining these figures, and has been busy presenting them around the country and receiving feedback. We need to get her on Lactnet. I don't think it's too negative to say that bf'ers don't have to carry bottles/buy formula, but you could probably mollify the recipients of abm manufacturer's largesse at your institution by putting this in a more positive light "BF mothers always have baby's milk handy and at the right temperature, with nothing to buy, store, or carry." Good luck. Send any replies to my email address, am I am going nomail to eliminate temptation- I would much rather do lactnet than pack! Regards, Catherine