function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aqua, Journal of Ichthyology and Aquatic Biology', 1],
    ['Bulletin of Marine Science', 1],
    ['Bulletin of the United States National Museum', 3],
    ['Copeia', 3],
    ['Fieldiana Zoology, New Series', 1],
    ['Journal of the Washington Academy of Sciences', 1],
    ['Notulae Naturae', 1],
    ['Proceedings of the United States National Museum, 3', 1],
    ['Publications of the Field Museum of Natural History, Zoölogical', 1],
    ['University of California Publications in Zoology', 1],
    ['Zoologica', 1],
    ['Zootaxa', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=16)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);