function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 33],
    ['Bulletin of the American Museum of Natural History', 92],
    ['Check List', 87],
    ['Fossil Imprint', 44],
    ['Geodiversitas', 193],
    ['Handbook of the Mammals of the World – Volume 1 Carnivores', 256],
    ['Handbook of the Mammals of the World – Volume 4 Sea Mammals', 36],
    ['Laurentius Salvius', 53],
    ['Mammal Species of the World (1 st Edition)', 391],
    ['Mammal Species of the World (2 nd Edition)', 432],
    ['Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1', 1002],
    ['Proceedings of the Biological Society of Washington', 58],
    ['Zoological Journal of the Linnean Society', 76],
    ['Zoosystema', 30],
    ['Zootaxa', 117],
    ['Other (83)', 272]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=3172)',
    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);