function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annalen des Naturhistorischen Museums in Wien', 5],
    ['Annales de la Société Entomologique de France, Séries 1 - 6', 28],
    ['Annali del Museo Civico di Storia Naturale di Genova', 20],
    ['Annals and Magazine of Natural History, Including Zoology, Botany and Geology, Being a Continuation of the \' Magazine of Botany ', 4],
    ['Bauer und Raspe', 9],
    ['Bulletin de la Société Zoologique de France', 4],
    ['Canadian Entomologist', 4],
    ['F. G. Levrault', 5],
    ['Mitteilungen aus dem Naturhistorischen Museum in Hamburg', 15],
    ['Mitteilungen aus dem Zoologischen Museum in Berlin', 11],
    ['Oversigt over det Kongelige Danske Videnskabernes Selskabs Forhandlinger', 12],
    ['Privately published', 15],
    ['The Journal of the Linnean Society of London, Zoology', 5],
    ['Transactions of the Zoological Society of London', 13],
    ['Zootaxa', 10],
    ['Other (56)', 89]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=249)',
    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);