function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales du Muséum d\'Histoire Naturelle, Paris', 47],
    ['Biodiversity Data Journal', 58],
    ['European Journal of Taxonomy', 319],
    ['Geodiversitas', 66],
    ['Johan. Christi. Trappii', 36],
    ['Journal of Molluscan Studies The Malacological Society of London', 30],
    ['Journal of Natural History', 100],
    ['Laurentius Salvius', 218],
    ['Mémoires du Muséum national d\'Histoire naturelle', 202],
    ['Proceedings of the Zoological Society of London', 37],
    ['Visaya', 324],
    ['ZooKeys', 42],
    ['Zoological Journal of the Linnean Society', 64],
    ['Zoosystema', 196],
    ['Zootaxa', 1784],
    ['Other (102)', 415]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=3938)',
    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);