function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annalen des Naturhistorischen Museums in Wien, Serie A Mineralogie und Petrographie Geologie und Palaeontologie Anthropologie un', 1],
    ['Archiv für Naturgeschichte', 1],
    ['Biodiversity Data Journal', 2],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College', 14],
    ['Bulletin of the National Science Museum, Series A (Zoology)', 1],
    ['European Journal of Taxonomy', 2],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 1],
    ['Proceedings of the Boston Society of Natural History', 1],
    ['Species Diversity', 1],
    ['ZooKeys', 3],
    ['Zootaxa', 98]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=125)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);