Organized health and social services for mothers (particularly as they need family planning and pregnancy related services), their children, and (rarely) fathers. Mothers and children are often considered particularly vulnerable populations with special health needs; their health to be a matter of high public priority; and particularly benefited by preventive medicine. Therefore such services are sometimes separately organized and funded from other health services. One example is the Maternal and Child Health Program operated by the Federal Government under the authority of title V of the Social Security Act.