function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Australian zoologist', 2],
    ['Biodiversity Data Journal', 4],
    ['Bulletin of the American Museum of Natural History', 2],
    ['Bulletin of the United States Fish Commission', 2],
    ['European Journal of Taxonomy', 2],
    ['F. G. Levrault', 3],
    ['Ichthyological Research', 2],
    ['Monatsberichte der Akademie der Wissenschaft zu Berlin', 2],
    ['Proceedings of the California Academy of Sciences, Series 4', 2],
    ['Proceedings of the Linnean Society of New South Wales', 2],
    ['Proceedings of the United States National Museum, 3', 2],
    ['Proceedings of the Zoological Society of London, B', 2],
    ['Records of the Australian Museum', 3],
    ['Records of the South Australian Museum', 2],
    ['Zootaxa', 43],
    ['Other (18)', 19]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=94)',
    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);