function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biodiversity Data Journal', 1756],
    ['Bulletin of the American Museum of Natural History', 3865],
    ['Check List', 1682],
    ['European Journal of Taxonomy', 2675],
    ['Geodiversitas', 1674],
    ['Handbook of the Mammals of the World – Volume 7 Rodents II', 1718],
    ['Handbook of the Mammals of the World – Volume 9 Bats', 1400],
    ['Laurentius Salvius', 1562],
    ['Mammal Species of the World (1 st Edition)', 5376],
    ['Mammal Species of the World (2 nd Edition)', 5951],
    ['Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1', 6513],
    ['Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2', 3530],
    ['Zoological Journal of the Linnean Society', 2413],
    ['Zoosystema', 1648],
    ['Zootaxa', 29123],
    ['Other (1902)', 39904]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=110790)',
    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);