function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Australian Journal of Zoology, Supplementary Series', 5],
    ['Beaufortia', 4],
    ['Bulletin of the National Science Museum, Series A (Zoology)', 3],
    ['Check List', 2],
    ['European Journal of Taxonomy', 44],
    ['Fauna und Flora des Golfes von Neapel und der Angrenzenden Meeres-Abschnitte', 2],
    ['Journal of Natural History', 60],
    ['Memoirs of the Queensland Museum', 7],
    ['Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut', 9],
    ['Species Diversity', 5],
    ['Transactions of the Royal Society of New Zealand', 3],
    ['Zoological Journal of the Linnean Society', 37],
    ['Zoological Science', 15],
    ['Zoological Systematics', 5],
    ['Zootaxa', 746],
    ['Other (24)', 26]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=973)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);