function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anzeiger', 2],
    ['Archiv für Naturgeschichte', 4],
    ['Benham and Leeve', 7],
    ['Bulletin of the National Museum of Nature and Science, Series A (Zoology)', 1],
    ['Bulletin of the National Science Museum', 1],
    ['Bulletin of the National Science Museum, Series A (Zoology)', 2],
    ['Geodiversitas', 4],
    ['Journal of Natural History', 25],
    ['Memoirs of the National Museum of Nature and Science', 1],
    ['Nauplius', 9],
    ['Occasional Papers of the Bernice P. Bishop Museum', 1],
    ['Proceedings of the Zoological Society of London, B', 2],
    ['Transactions of the Zoological Society of London', 2],
    ['Zoosystema', 4],
    ['Zootaxa', 137],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=207)',
    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);