function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Herpetologica Sinica', 2],
    ['Annales du Musée Royal du Congo Belge, Série 4, Zoologiques', 2],
    ['Biodiversity Data Journal', 4],
    ['Centralblatt für Bakteriologie, Parasitenkunde und Infektionskrankheiten', 2],
    ['Fujian Shida Xuebao', 2],
    ['Journal of Parasitology', 2],
    ['Proceedings of the Helminthological Society of Washington', 3],
    ['Proceedings of the Linnean Society of New South Wales', 3],
    ['Transactions of the American Microscopical Society', 2],
    ['Vestnik Ceskoslovenske Spolecnosti Zoologicke', 3],
    ['ZooKeys', 2],
    ['Zoodiversity', 2],
    ['Zoologische Jahrbucher, Abteilung für Systematik', 2],
    ['Zoopathologica', 2],
    ['Zootaxa', 56],
    ['Other (15)', 15]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=104)',
    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);