function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Beiträge Zur Entomologie = Contributions to Entomology', 6],
    ['Biodiversity Data Journal', 62],
    ['Bulletin of the British Museum (Natural History). Entomology', 2],
    ['Bulletin of the National Museum of Nature and Science, Series A (Zoology)', 1],
    ['Bulletin of the National Science Museum, Series A (Zoology)', 7],
    ['C. Fritsch', 1],
    ['Deutsche Entomologische Zeitschrift', 3],
    ['Ioannis Thomae Trattner', 3],
    ['Kungliga Svenska Vetenskapsakademiens Handlingar', 2],
    ['Laurentii Salvii', 4],
    ['Laurentius Salvius', 41],
    ['Linzer biologische Beiträge', 96],
    ['Proceedings of the Japanese Society of Systematic Zoology', 2],
    ['Zoological Systematics', 7],
    ['Zootaxa', 58],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=300)',
    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);