Adverse effects Breast milk Chemotherapy Complications Contamination Drug effects Drug-Related Side Effects and Adverse Reactions -- Handbooks Effect of drugs on Fetus Fetus -- Effect of drugs on Fetus -- Effect of drugs on -- Handbooks, manuals, etc Infant, Newborn Infants (Newborn) Lactation Lactation -- drug effects -- Handbooks Obstetrical pharmacology -- Handbooks, manuals, etc Obstetrics -- pharmacology Pregnancy Pregnancy -- drug effects -- Handbooks