function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Zoologica Academiae Scientiarum Hungaricae', 1],
    ['Arachnology Letters', 2],
    ['Biodiversity Data Journal', 64],
    ['Bulletin de la Société Zoologique de France', 1],
    ['Bulletin of the National Museum of Nature and Science, Series A (Zoology)', 2],
    ['Caucasian Entomological Bulletin', 5],
    ['Caucasiana', 3],
    ['Insecta Mundi', 2],
    ['Journal of Natural History', 3],
    ['Records of the Zoological Survey of India', 2],
    ['ZooKeys', 133],
    ['Zoological Systematics', 37],
    ['Zoology in the Middle East', 2],
    ['Zoosystema', 11],
    ['Zootaxa', 45],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=320)',
    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);