* Some clinical nomenclature: “maternal deprivation syndrome,” “deprivation syndrome,” and “nonorganic failure to thrive” usually refer to infants and invariably to the loss of the mother. “Stress dwarfism,” “psychogenic dwarfism,” and “psychosocial dwarfism” usually refer to children aged three years or older. However, some papers do not follow this age dichotomy; during the nineteenth century, infants dying of failure to thrive in orphanages were said to suffer from “marasmus,” Greek for “wasting away.”