function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 32],
    ['Acta Zoologica Academiae Scientiarum Hungaricae', 6],
    ['Acta Zootaxonomica Sinica', 7],
    ['Alpine Entomology', 6],
    ['Beiträge Zur Entomologie = Contributions to Entomology', 120],
    ['Biodiversity Data Journal', 813],
    ['Contributions to Entomology', 8],
    ['Deutsche Entomologische Zeitschrift', 104],
    ['Journal of Hymenoptera Research', 210],
    ['Laurentius Salvius', 41],
    ['Linzer biologische Beiträge', 639],
    ['ZooKeys', 35],
    ['Zoological Systematics', 23],
    ['Zoosystematics and Evolution', 7],
    ['Zootaxa', 492],
    ['Other (36)', 82]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=2625)',
    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);