function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anzeiger', 5],
    ['Aquaristik Aktuell', 3],
    ['Beaufortia', 11],
    ['Check List', 5],
    ['Freshwater and Marine Aquarium', 4],
    ['Neotropical Ichthyology', 18],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 7],
    ['Revue française d\'Aquariologie Herpétologie', 9],
    ['Senckenbergiana Biologica', 6],
    ['Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaften Classe', 7],
    ['Stanford Ichthyological Bulletin', 3],
    ['Tropical Fish Hobbyist', 6],
    ['University of Kentucky', 4],
    ['Zoologische Mededelingen, Leiden', 7],
    ['Zootaxa', 16],
    ['Other (25)', 30]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=141)',
    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);