function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['African Invertebrates', 8],
    ['European Journal of Taxonomy', 25],
    ['Far Eastern Entomologist', 62],
    ['Journal of Orthoptera Research', 46],
    ['Linzer biologische Beiträge', 20],
    ['Mémoires de la Societe de Physique et d\'Histoire Naturelle de Genève', 14],
    ['Mémoires du Muséum national d\'Histoire naturelle', 11],
    ['Orthopterists\' Society', 132],
    ['Raffles Bulletin of Zoology', 14],
    ['Revue suisse de Zoologie', 273],
    ['ZooKeys', 35],
    ['Zoological Journal of the Linnean Society', 11],
    ['Zoosystema', 40],
    ['Zoosystematica Rossica', 16],
    ['Zootaxa', 454],
    ['Other (17)', 45]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1206)',
    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);