1. included in the category of environmental There are a few well-established environ
2. exposures and have been linked to a few mental causes of childhood cancer such as
3. types of cancer in adults. There is little evi- radiation chemotherapeutic agents and
4. dence however of viral- or bacterial- diethylstilbestrol. Many other agents such as
5. induced cancer in children. An exception EMF pesticides and some parental occupa