function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Ichthyologica et Piscatoria', 1],
    ['Annotationes Zoologicae Japonenses', 1],
    ['Archives Néerlandaises des Sciences Exactes et Naturelles', 1],
    ['Biodiversity Data Journal', 1],
    ['Bulletin of the United States National Museum', 1],
    ['Ichthyological Bulletin of the J. L. B. Smith Institute of Ichthyology', 1],
    ['Journal of Fisheries of China.', 1],
    ['Journal of Zoology, London', 1],
    ['Journal of the Ocean Science Foundation', 3],
    ['Lingnan Science Journal', 1],
    ['Monogr. Bur. Sci. Manila', 1],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 2],
    ['Proceedings of the United States National Museum, 3', 1],
    ['Senckenbergiana Biologica', 3],
    ['Zootaxa', 13],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=38)',
    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);