Massachusetts public health officials have warned parents of young children to avoid storing infant formula or breast milk in plastic bottles containing bisphenol A, or BPA. State officials also urged pregnant or breastfeeding women to avoid the common chemical in other food and drink containers. Studies in laboratory animals suggest BPA might increase the risk of of developmental problems in some fetuses and young children. The Boston Globe reports environmental health advocates praised the state for the warning but said it didn’t go far enough. They want state public health officials to follow the lead of Connecticut and ban BPA in all children’s products sold in Massachusetts.