function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['African Invertebrates', 22],
    ['Bulletin of the National Museum of Nature and Science, Series A (Zoology)', 1],
    ['Invertebrate Taxonomy', 4],
    ['Journal of Natural History', 96],
    ['Journal of Species Research', 12],
    ['Raffles Bulletin of Zoology', 55],
    ['Revue suisse de Zoologie', 2],
    ['VermEcology', 2],
    ['ZooKeys', 32],
    ['Zootaxa', 518],
    ['Öfversigt af Konglelige Vetenskaps-Akademiens Förhandlingar', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=745)',
    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);