" The sympathy for parents who have lost children is also so natural and automatic that the deaths are often not thoroughly investigated. In many cases the children are killed in infancy and their demise ascribed to Sudden Infant Death Syndrome (SIDS). In fact, the research paper originally used to claim that SIDS has a genetic origin was based primarily on the case of a mother who had supposedly lost five successive children to SIDS. It turned out that the mother had MBPS and had smothered the children to death. She was ultimately convicted of the murders. "

― Bruce D. Perry , The Boy Who Was Raised as a Dog: And Other Stories from a Child Psychiatrist's Notebook