function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arthropod fauna of the UAE', 1],
    ['Biodiversity Data Journal', 8],
    ['C. Reichard', 1],
    ['E. W. Janson', 3],
    ['Far Eastern Entomologist', 4],
    ['Insecta Mundi', 1],
    ['Japanese Journal of Systematic Entomology', 4],
    ['Journal of Hymenoptera Research', 37],
    ['Journal of Natural History', 28],
    ['Linzer biologische Beiträge', 145],
    ['Papéis Avulsos de Zoologia', 7],
    ['Printed by order of the Trustees', 1],
    ['Proceedings of the United States National Museum, 3', 1],
    ['Zoological Systematics', 2],
    ['Zootaxa', 210],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=455)',
    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);