function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biodiversity Data Journal', 81],
    ['Bulletin of the National Science Museum, Series A (Zoology)', 1],
    ['European Journal of Taxonomy', 27],
    ['Journal of Natural History', 26],
    ['Laurentius Salvius', 6],
    ['P. van Cleef', 2],
    ['Records of the Australian Museum', 3],
    ['Species Diversity', 5],
    ['Subterranean Biology', 10],
    ['ZooKeys', 54],
    ['Zoological Journal of the Linnean Society', 10],
    ['Zoological Studies', 2],
    ['Zoosystema', 13],
    ['Zootaxa', 294],
    ['Öfversigt af Konglelige Vetenskaps-Akademiens Förhandlingar', 4],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=544)',
    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);