function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 1],
    ['Anales de la Universidad de Chile, Memorias Cientificas y Literarias', 1],
    ['Bulletin of the American Museum of Natural History', 1],
    ['Bulletin of the United States National Museum', 1],
    ['Copeia', 3],
    ['European Journal of Taxonomy', 10],
    ['International Journal of Research Studies in Zoology', 1],
    ['Journal of Natural History', 2],
    ['New Zealand Journal of Science and Technology', 1],
    ['Philippine Journal of Science, Section D', 2],
    ['Poeyana, A', 2],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 1],
    ['Proceedings of the American Philosophical Society', 1],
    ['Records of the Australian Museum', 2],
    ['Zootaxa', 61],
    ['Other (10)', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=100)',
    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);