function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 4],
    ['Annalen des Naturhistorischen Museums in Wien', 1],
    ['Arch. Nat. Biol. Dorpat, 2', 1],
    ['Asiatic Researches', 7],
    ['Bulletin de la Société Zoologique de France', 1],
    ['Cybium', 1],
    ['Das Tierreich. Eine Zusmmenstellung und Kenneichnung der rezenten Tierformen', 1],
    ['Eawag: Swiss Federal Institute of Aquatic Science and Technology', 1],
    ['Graellsia', 1],
    ['Ichthyological Exploration of Freshwaters', 2],
    ['Madras Journal of Literature and Science', 2],
    ['Natuurkunde Tijdschrift voor Nederlandsche-Indië', 2],
    ['Nederlandsch Tijdschrift voor de Dierkunde', 2],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 2],
    ['Zootaxa', 18],
    ['Other (12)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=58)',
    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);