function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arthropoda Selecta', 57],
    ['Biodiversity Data Journal', 499],
    ['Bulletin of the National Museum of Nature and Science, Series A (Zoology)', 7],
    ['Bulletin of the National Science Museum, Series A (Zoology)', 46],
    ['European Journal of Taxonomy', 67],
    ['Evolutionary Systematics', 8],
    ['Far Eastern Entomologist', 46],
    ['Megataxa', 121],
    ['Mitt. Abt. Zool. Landesmus. Joanneum', 31],
    ['Raffles Bulletin of Zoology', 42],
    ['Revue suisse de Zoologie', 260],
    ['ZooKeys', 184],
    ['Zoological Journal of the Linnean Society', 104],
    ['Zoosystema', 228],
    ['Zootaxa', 634],
    ['Other (33)', 87]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=2421)',
    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);