Most lacatation experts do not recommend mixing breast milk with formula in the same bottle. (breastmilk.com)
Thanks to new laws and companies making cool lacatation stations, airports will be friendlier to nursing mothers in the near future. (parents.com)
I'd have to argue in agreement with those who comment that it's lacatation (breasts stretch & enlarge due to milk production), not breastfeeding, that causes the problems. (phdinparenting.com)