function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 125],
    ['Beiträge Zur Entomologie = Contributions to Entomology', 13],
    ['Bulletin of the National Museum of Nature and Science, Series A (Zoology)', 7],
    ['Deutsche Entomologische Zeitschrift', 88],
    ['Entomologicheskoe Obozrenie', 6],
    ['European Journal of Taxonomy', 23],
    ['Japanese Journal of Systematic Entomology', 41],
    ['Linzer biologische Beiträge', 1134],
    ['Nauka', 14],
    ['Proceedings of the Japanese Society of Systematic Zoology', 7],
    ['Reichenbachia', 9],
    ['Revue suisse de Zoologie', 11],
    ['Senckenbergiana Biologica', 13],
    ['ZooKeys', 63],
    ['Zootaxa', 211],
    ['Other (9)', 16]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1781)',
    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);