function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Algemeene Konst- en Letter-Bode', 5],
    ['American Museum Novitates', 5],
    ['Biodiversity Data Journal', 7],
    ['Check List', 6],
    ['European Journal of Taxonomy', 19],
    ['Ichthyological Exploration of Freshwaters', 6],
    ['Journal of Natural History', 7],
    ['Journal of the Academy of Natural Sciences of Philadelphia', 8],
    ['Natuurkunde Tijdschrift voor Nederlandsche-Indië', 9],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 17],
    ['Proceedings of the Biological Society of Washington', 7],
    ['Proceedings of the United States National Museum, 3', 12],
    ['Raffles Bulletin of Zoology', 17],
    ['Zoological Journal of the Linnean Society', 35],
    ['Zootaxa', 199],
    ['Other (90)', 158]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=517)',
    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);