function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amazoniana', 1],
    ['Annales des Sciences Naturelles, Zoologie, Série 5', 4],
    ['Annali del Museo Civico di Storia Naturale di Genova', 2],
    ['Annals of the Carnegie Museum', 1],
    ['Anzeiger', 6],
    ['Archiv für Naturgeschichte', 2],
    ['Bollettino dei Musei di Zoologia ed Anatomia Comparata della R. Università di Torino', 2],
    ['Bulletin du Muséum National d’Histoire Naturelle, Série 2', 1],
    ['Memoirs of the Carnegie Museum', 2],
    ['Neotropical Ichthyology', 3],
    ['Oversigt over det Kongelige Danske Videnskabernes Selskabs Forhandlinger', 2],
    ['Proceedings of the American Philosophical Society', 9],
    ['Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaften Classe', 2],
    ['The American Naturalist', 4],
    ['Zootaxa', 18],
    ['Other (18)', 18]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=77)',
    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);