Bibliography

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 
P
PubMed Central (PMC). Vol 2012. Bethesda: National Center for Biotechnology Information, U.S. National Library of Medicine; 2000.
PubMed Clinical Queries. U.S. National Library of Medicine; 2012.
PubMed® Online Training. Bethesda: U.S. National Library of Medicine; 2010.
Q
R