function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Archiv für Molluskenkunde', 9],
    ['Biodiversity Data Journal', 12],
    ['Bulletin of the National Science Museum, Series A (Zoology)', 1],
    ['ConchBooks', 1],
    ['European Journal of Taxonomy', 1],
    ['Journal of Natural History', 5],
    ['Laurentius Salvius', 53],
    ['Linzer biologische Beiträge', 8],
    ['Records of the Australian Museum', 5],
    ['Revue suisse de Zoologie', 80],
    ['The Bulletin of the Russian Far East Malacological Society', 3],
    ['ZooKeys', 59],
    ['Zoological Journal of the Linnean Society', 12],
    ['Zoosystema', 10],
    ['Zootaxa', 121],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=382)',
    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);