function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annals of the Carnegie Museum', 7],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College, 3', 8],
    ['Check List', 13],
    ['Cybium', 4],
    ['European Journal of Taxonomy', 10],
    ['Ichthyological Exploration of Freshwaters', 2],
    ['Ind. Univ. Studies', 6],
    ['Journal of Natural History', 27],
    ['K. Fysiogr. Sällsk. Lund Förh.', 2],
    ['Neotropical Ichthyology', 29],
    ['Papéis Avulsos de Zoologia', 3],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 4],
    ['Proceedings of the United States National Museum, 3', 3],
    ['Revue suisse de zoologie', 6],
    ['Zootaxa', 106],
    ['Other (19)', 23]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=253)',
    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);