function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abhandlungen des Naturwissenschaftlichen Vereins', 4],
    ['Annales historico-naturales Musei nationalis hungarici', 38],
    ['Archivo Zoologico Italiano', 4],
    ['Biodiversity Data Journal', 2],
    ['Fauna of New Zealand', 16],
    ['Jahresbericht der Naturforschenden Gesellschaft Graubündens', 2],
    ['Journal of Nematology', 3],
    ['Linzer biologische Beiträge', 2],
    ['Pakistan Journal of Nematology', 6],
    ['Publicatiunile Societatii Naturalistilor din Romania', 4],
    ['Transactions of the American Microscopical Society', 8],
    ['Zoological Journal of the Linnean Society', 8],
    ['Zoologischen Anzeiger', 8],
    ['Zoologischer Anzeiger', 11],
    ['Zootaxa', 52],
    ['Other (8)', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=178)',
    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);