function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['A. F. Rose', 11],
    ['Annalen des Naturhistorischen Museums in Wien', 4],
    ['Annals of the Lyceum of Natural History of New York', 11],
    ['Beschäft Gesellschaft Naturforschender Freunde zu Berlin', 4],
    ['Bulletin of the United States Bureau of Fisheries', 4],
    ['Denkschriften der Kaiserlichen Akademie der Wissenschaften, Wien', 18],
    ['Laurentii Salvii', 4],
    ['Laurentius Salvius', 29],
    ['Mitth. Deutsch. Ges. Natur. Volker. Ostasiens', 3],
    ['Proceedings of the Zoological Society of London, B', 4],
    ['Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaften Classe', 4],
    ['Zoologischer Anzeiger', 5],
    ['Zoosystematics and Evolution', 10],
    ['Zootaxa', 25],
    ['Öfversigt af Konglelige Vetenskaps-Akademiens Förhandlingar', 4],
    ['Other (73)', 101]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=241)',
    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);