function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 1],
    ['Annalen des Naturhistorischen Museums in Wien, Serie B, Botanik und Zoologie', 4],
    ['Archiv für Naturgeschichte', 4],
    ['Arthropod Systematics & amp; Phylogeny', 2],
    ['Biodiversity Data Journal', 3],
    ['Bulletin of the National Museum of Nature and Science, Series A (Zoology)', 1],
    ['Check List', 3],
    ['European Journal of Taxonomy', 2],
    ['Journal of Natural History', 14],
    ['Raffles Bulletin of Zoology', 4],
    ['Report on the Scientific Results of the Voyage of H. M. S. “ Challenger ” during the Years 1873 - 76 under the Command of Captai', 2],
    ['ZooKeys', 9],
    ['Zoological Systematics', 33],
    ['Zoosystema', 14],
    ['Zootaxa', 675],
    ['Other (10)', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=781)',
    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);