function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biodiversity Data Journal', 17],
    ['Bulletin of the British Museum (Natural History), Entomology Series', 3],
    ['Deutsche Entomologische Zeitschrift', 3],
    ['European Journal of Taxonomy', 24],
    ['Hawaii Sugar Plantation Association Entomological Bulletin', 4],
    ['Insects of Guam II', 25],
    ['Journal of Natural History', 18],
    ['Linzer biologische Beiträge', 4],
    ['Mitteilungen Der Schweizerischen Entomologischen Gesellschaft', 5],
    ['Proceedings of the Hawaiian Entomological Society', 42],
    ['The Entomologist', 4],
    ['Transactions of the American Entomological Society', 6],
    ['Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien', 12],
    ['ZooKeys', 41],
    ['Zootaxa', 171],
    ['Other (13)', 16]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=395)',
    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);