Looks like you clickedhttp://www.ncbi.nlm.nih.gov/pubmed/19389261?ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_SingleItemSupl.Pubmed_Discovery_PMC&linkpos=1&log$=citedinpmcarticles&logdbfrom=pubmed
If you do not want to visit that page, you can close this browser tab.
