%0 Journal Article %B Comparative and functional genomics %D 2005 %G eng %N 7-8 %P 388-97 %T Plant Ontology (PO): a Controlled Vocabulary of Plant Structures and Growth Stages. %V 6 %1 http://www.ncbi.nlm.nih.gov/pubmed/18629207?dopt=Abstract %8 2005