function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Copeia', 2],
    ['Cybium', 2],
    ['Doklady Akademiia Nauk SSSR', 2],
    ['European Journal of Taxonomy', 1],
    ['Izv. Tikh. Nauch. Inst. Rybn. Khoz.', 1],
    ['Memoirs of the Museum of Comparative Zoology, at Harvard College', 1],
    ['Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaften Classe', 1],
    ['Stanford Ichthyological Bulletin', 1],
    ['Trudy Zoologicheskogo Instituta Akademii Nauk SSSR. [Proc. Zool. Inst. Acad. Sci.]', 4],
    ['Zoologicheskii Zhurnal', 1],
    ['Zootaxa', 23]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=39)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);