Spinal cord section showing the white and the gray matter in four spinal cord levels. The gray matter mainly contains the cell bodies of neurons and glia and is divided into four main columns: dorsal horn, intermediate column, lateral horn and ventral horn column.
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Monitoring Over-The-Counter Medication Sales for Early Detection of Disease Outbreaks --- New York City. Corresponding author: Debjani Das, New York City Department of Health and Mental Hygiene, 125 Worth St., Box No. CN22A, New York, NY 10013. Telephone: 212-788-4318; Fax: 212-788-5470; E-mail: ddas@health.nyc.gov.