function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Beiträge Zur Entomologie = Contributions to Entomology', 8],
    ['Biodiversity Data Journal', 17],
    ['Bulletin of the British Museum (Natural History). Entomology. Supplement', 4],
    ['Catalogue of the Lepidoptera Phalaenae in the British Museum', 121],
    ['Catalogue of the Lepidoptera Phalænæ in the British Museum', 49],
    ['Ecologica Montenegrina', 25],
    ['Linzer biologische Beiträge', 18],
    ['List of the Specimens of Lepidopterous Insects in the Collection of the British Museum', 32],
    ['Phytotaxa', 5],
    ['Tropical Lepidoptera Research', 16],
    ['ZooKeys', 43],
    ['Zoological Journal of the Linnean Society', 33],
    ['Zoosystema', 2414],
    ['Zootaxa', 936],
    ['sugapa digital', 9],
    ['Other (32)', 52]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=3782)',
    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);