function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biodiversity Data Journal', 5],
    ['Bulletin of the American Museum of Natural History', 19],
    ['Bulletin of the United States National Museum', 3],
    ['Check List', 3],
    ['Chinese Journal of Oceanology and Limnology', 4],
    ['Cybium', 4],
    ['European Journal of Taxonomy', 42],
    ['Journal of Natural History', 8],
    ['Memoirs of the Museum of Comparative Zoology, at Harvard College', 5],
    ['Memoirs of the National Museum of Victoria', 5],
    ['Neotropical Ichthyology', 4],
    ['Proceedings of the United States National Museum, 3', 4],
    ['Veit', 8],
    ['Zoological Journal of the Linnean Society', 18],
    ['Zootaxa', 447],
    ['Other (55)', 67]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=646)',
    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);