function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 34],
    ['Acta Zoologica Academiae Scientiarum Hungaricae', 5],
    ['Biodiversity Data Journal', 6],
    ['European Journal of Taxonomy', 286],
    ['Geodiversitas', 5],
    ['Insecta Mundi', 5],
    ['International Quarterly of Entomology', 6],
    ['Japanese Journal of Systematic Entomology', 6],
    ['Journal of Natural History', 11],
    ['Linzer biologische Beiträge', 15],
    ['Transactions of the Entomological Society of London', 22],
    ['ZooKeys', 26],
    ['Zoological Systematics', 13],
    ['Zoosystema', 53],
    ['Zootaxa', 86],
    ['Other (27)', 48]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=627)',
    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);