function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Biologica Universitatis Daugavpiliensis', 2],
    ['Acta Entomologica Musei Nationalis Pragae', 4],
    ['Amurian Zoological Journal', 3],
    ['Biodiversity Data Journal', 10],
    ['Bulletin de la Société Impériale des Naturalistes de Moscou', 2],
    ['Bulletin of the American Museum of Natural History', 8],
    ['Caucasian Entomological Bulletin', 14],
    ['Fauna of New Zealand', 13],
    ['Insecta Mundi', 57],
    ['Insects of Guam I', 14],
    ['Mémoires du Muséum national d\'Histoire naturelle', 3],
    ['Neotropical Ichthyology', 3],
    ['Revue et Magasin de Zoologie, Série 2', 7],
    ['ZooKeys', 15],
    ['Zootaxa', 352],
    ['Other (28)', 33]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=540)',
    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);