function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Beiträge Zur Entomologie = Contributions to Entomology', 1],
    ['Bulletin of the Kitakyushu Museum of Natural History and Human History, Series A, Natural History', 7],
    ['European Journal of Taxonomy', 2],
    ['Fauna of New Zealand', 4],
    ['Linzer biologische Beiträge', 2],
    ['Nota Lepidopterologica', 3],
    ['Proceedings of the General Meetings for Scientific Business of the Zoological Society of London', 13],
    ['Transactions and proceedings of the New Zealand Institute', 4],
    ['ZooKeys', 5],
    ['Zoological Systematics', 2],
    ['Zoosystematics and Evolution', 10],
    ['Zootaxa', 42]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=95)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);