function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Biologica Sibirica', 30],
    ['Acta Entomologica Musei Nationalis Pragae', 41],
    ['Biodiversity Data Journal', 153],
    ['Caucasian Entomological Bulletin', 27],
    ['Check List', 20],
    ['Far Eastern Entomologist', 77],
    ['Fragmenta entomologica', 28],
    ['Journal of Orthoptera Research', 139],
    ['Linzer biologische Beiträge', 42],
    ['Mémoires du Muséum national d\'Histoire naturelle', 168],
    ['Records of the Zoological Survey of India', 29],
    ['Revue suisse de Zoologie', 216],
    ['Transactions of the American Entomological Society', 29],
    ['ZooKeys', 25],
    ['Zootaxa', 501],
    ['Other (20)', 71]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1596)',
    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);