function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acarologia', 4107],
    ['American Museum Novitates', 730],
    ['Biodiversity Data Journal', 3668],
    ['Bulletin of the American Museum of Natural History', 3623],
    ['European Journal of Taxonomy', 2455],
    ['Euscorpius', 963],
    ['Hornmilben (Oribatida) [Dahl, Tierwelt Deutschlands, Teil 76]', 869],
    ['Journal of Natural History', 1865],
    ['Laurentius Salvius', 772],
    ['Persian Journal of Acarology', 1700],
    ['ZooKeys', 6193],
    ['Zoological Journal of the Linnean Society', 1615],
    ['Zoological Systematics', 882],
    ['Zoosystema', 2719],
    ['Zootaxa', 46849],
    ['Other (1161)', 17724]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=96734)',
    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);