RoxithromycinMilk, HumanLeucomycinsBreastBreast FeedingErythromycinAzithromycinAnti-Bacterial AgentsMacrolidesKetolidesClarithromycinMilk ProteinsLactationCarcinoma, Ductal, BreastBreast Milk ExpressionInfant FoodBreast DiseasesErythromycin EstolateInfant Nutritional Physiological PhenomenaInfant FormulaInfant, NewbornMastitisInfectious Disease Transmission, Vertical