function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anzeiger', 1],
    ['Bulletin Soc. Acclim. Paris', 1],
    ['Bulletin de l\'Akadémie Impériale des Sciences de St. Pétersbourg, 5', 1],
    ['Comptes Rendus Hebdomadaires des Séances de l\'Académie des Sciences, Série D, Sciences Naturelles', 1],
    ['Comptes Rendus de l’Academie des Sciences de Paris, 3', 1],
    ['Eawag: Swiss Federal Institute of Aquatic Science and Technology', 1],
    ['Folia Zool.', 1],
    ['Graellsia', 2],
    ['Ichthyological Exploration of Freshwaters', 1],
    ['Museum Senckenbergianum: Abhandlungen aus dem Gebiete der beschreibenden Naturgeschichte, van Mitgliedern der Senckenbergischen ', 1],
    ['Mémoires de la Societe Neuchateloise des Sciences Naturelles', 1],
    ['Proceedings of the Zoological Society of London, B', 5],
    ['Turkish Journal of Zoology', 4],
    ['Zoosystematics and Evolution', 4],
    ['Zootaxa', 18],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=46)',
    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);