function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acarologia', 4101],
    ['American Museum Novitates', 662],
    ['Biodiversity Data Journal', 2473],
    ['Bulletin of the American Museum of Natural History', 1529],
    ['European Journal of Taxonomy', 2286],
    ['Euscorpius', 963],
    ['Hornmilben (Oribatida) [Dahl, Tierwelt Deutschlands, Teil 76]', 869],
    ['Journal of Natural History', 1112],
    ['Persian Journal of Acarology', 1700],
    ['Revue suisse de Zoologie', 525],
    ['ZooKeys', 5060],
    ['Zoological Journal of the Linnean Society', 934],
    ['Zoological Systematics', 866],
    ['Zoosystema', 1181],
    ['Zootaxa', 40390],
    ['Other (804)', 11722]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=76373)',
    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);