function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Protozoologica', 35],
    ['Archiv für Protistenkunde', 5],
    ['Biodiversity Data Journal', 64],
    ['Cryptogamie, Bryologie', 6],
    ['Ecologica Montenegrina', 8],
    ['European Journal of Protistology', 7],
    ['European Journal of Taxonomy', 29],
    ['Havniae & Lipsiae', 100],
    ['Journal of Eukaryotic Microbiology', 37],
    ['Journal of Natural History', 75],
    ['Proceedings of the American Philosophical Society', 11],
    ['Records of the Australian Museum', 9],
    ['Vestnik Zoologii', 6],
    ['Zoological Journal of the Linnean Society', 50],
    ['Zootaxa', 1124],
    ['Other (59)', 110]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1676)',
    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);