function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annale van die Suid-Afrikaanse Museum [Annals of the South African Museum]', 1],
    ['Bihang till Kongliga Svenska Vetenskaps-Akademiens Handlingar', 1],
    ['Bulletin of the United States Fish Commission', 1],
    ['European Journal of Taxonomy', 2],
    ['Giornale di Scienze, Lettere ed Arti per la Sicilia', 1],
    ['Inst. Antarct. Argent.', 1],
    ['Journal des Museum Godeffroy', 1],
    ['Monatsberichte der Akademie der Wissenschaft zu Berlin', 1],
    ['Natuurkunde Tijdschrift voor Nederlandsche-Indië', 1],
    ['Notes from the Leyden Museum', 3],
    ['Proceedings of the United States National Museum, 3', 3],
    ['Records of the Australian Museum', 1],
    ['Senckenbergiana Biologica', 1],
    ['Trans. Proc. N. Z. Inst.', 3],
    ['Zootaxa', 4],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=27)',
    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);