function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acarologia', 92],
    ['Acarological Studies', 6],
    ['Acta Universitatis Carolinae - Biologica', 3],
    ['European Journal of Taxonomy', 39],
    ['Invertebrate Taxonomy', 5],
    ['Journal of Medical Entomology', 6],
    ['Journal of Natural History', 11],
    ['Memoirs of the Museum of Victoria', 8],
    ['Oriental insects', 4],
    ['Persian Journal of Acarology', 33],
    ['Records of the Australian Museum', 3],
    ['The American Midland Naturalist', 4],
    ['The Beagle. Records of the Museums and Art Galleries of the Northern Territory', 3],
    ['Veröffentlichungen des Instituts für Meeresforschung Bremerhaven', 40],
    ['Zootaxa', 3309],
    ['Other (16)', 25]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=3591)',
    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);