function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Zoologica Academiae Scientiarum Hungaricae', 65],
    ['Beiträge Zur Entomologie = Contributions to Entomology', 40],
    ['Biodiversity Data Journal', 216],
    ['Catalogue of the Lepidoptera Phalaenae in the British Museum', 100],
    ['Check List', 48],
    ['Deutsche Entomologische Zeitschrift', 122],
    ['Entomo Helvetica', 54],
    ['Far Eastern Entomologist', 93],
    ['Insecta Mundi', 97],
    ['Insects of Guam II', 31],
    ['Laurentius Salvius', 315],
    ['Linzer biologische Beiträge', 92],
    ['Transactions and proceedings of the New Zealand Institute', 30],
    ['ZooKeys', 518],
    ['Zootaxa', 1779],
    ['Other (91)', 340]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=3940)',
    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);