A number of studies have evaluated risk factors in infant homicide with the aim of preventing it. Anonymous delivery, a system where mothers can give birth in a hospital for free without showing ID, has been found to reduce the rate of police reported<unk> s in Austria. Baby hatch In the Middle Ages and in the 18th and 19th centuries, a "foundling wheel" system was used where mothers could leave them anonymously to be found and cared for. In modern times, baby hatch systems have been introduced in hospitals and other areas to allow mothers to leave children. The hatches are usually in hospitals, social centres, or churches, and consist of a door or flap in an outside wall which opens onto a soft bed, heated or at least insulated. Sensors in the bed alert carers when a baby has been put in it so that they can come and take care of the child. In Germany, babies are first looked after for eight weeks during which the mother can return and claim her child without any legal repercussions. If this does not happen, after eight weeks the child is put up for adoption.
Neonaticide
Anthopleurin
Antimetabolite
Tuberculocide
Cephalotribe
Sulfonamide 
Steroid ester
Xanthine oxidase inhibitor