function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['A. O. P. Nicholson', 1],
    ['Abhandlungen aus dem Gebiete der Naturwissenschaften herausgegeben vom Naturwissenschaftlichen Verein in Hamburg', 9],
    ['Annali del Museo Civico di Storia Naturale di Genova', 3],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 12],
    ['Archiv für Hydrobiologie, Supplement', 1],
    ['Bulletin of the Raffles Museum', 1],
    ['Cistula Entomologica', 5],
    ['Horæ Societatis Entomologicæ Rossicæ', 1],
    ['Journal and Proceedings of the Asiatic Society of Bengal', 4],
    ['Journal of the Bombay Natural History Society', 1],
    ['Magasin de Zoologie', 5],
    ['Revista Ibérica de Aracnología', 2],
    ['The Journal of the Asiatic Society of Bengal', 8],
    ['Zoologische Mededelingen, Leiden', 4],
    ['Zoologischer Anzeiger', 6],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=70)',
    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);