The Miriam Hospital, Providence, RI, USAWilliam is a member of the Cochrane Nursing Care Field.
Correspondence: William H. Anger, Jr, MLIS, Public Services Librarian, The Miriam Hospital, Providence, RI 02906, USA. E-mail: firstname.lastname@example.org
This is a summary of a Cochrane Review. The full citation and the names of the researchers who conducted the Review are listed in the Reference section below.