document.write('A study of infants 3-10 days old <a href=\"http://www.ncbi.nlm.nih.gov/pubmed/8165748?ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_DefaultReportPanel.Pubmed_RVDocSum\" rel=\"nofollow\">showed approximately 25% have PVCs</a>')