function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Palaeontologica Polonica', 2],
    ['Annalen des kaiserlich-königlichen naturhistorischen Hofmuseums', 2],
    ['Archiv für Naturgeschichte', 2],
    ['Biodiversity Data Journal', 2],
    ['European Journal of Taxonomy', 2],
    ['Geodiversitas', 2],
    ['Journal of Natural History', 3],
    ['Natural history research', 12],
    ['Nauplius', 3],
    ['Ohmu: occasional papers of Zoological Laboratory, Faculty of Agriculture, Kyushu University', 3],
    ['Raffles Bulletin of Zoology', 8],
    ['Records of the Australian Museum', 10],
    ['Zoological Journal of the Linnean Society', 21],
    ['Zoosystema', 17],
    ['Zootaxa', 1018],
    ['Other (9)', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1117)',
    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);