function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Australian Journal of Entomology', 1],
    ['Bulletin of the British Museum (Natural History). Entomology', 1],
    ['Insects of Guam II', 9],
    ['Journal of Natural History', 2],
    ['Proceedings of the Linnean Society of London, Zoology', 3],
    ['Taxonomic Monographs on Neotropical Hymenoptera', 4],
    ['The Entomologist', 1],
    ['Transactions of the Linnean Society of London', 10],
    ['ZooKeys', 14],
    ['Zootaxa', 444],
    ['Öfversigt af Konglelige Vetenskaps-Akademiens Förhandlingar', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=490)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);