function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Biologica Venezuelica', 10],
    ['Annales Societe Entomologique France', 8],
    ['Biodiversity Data Journal', 35],
    ['Bulletin of the American Museum of Natural History', 3],
    ['Entomo Helvetica', 5],
    ['Fragmenta entomologica', 4],
    ['Journal of Natural History', 3],
    ['Linzer biologische Beiträge', 8],
    ['Miscellanea Zoologica Sumatrana', 13],
    ['Mémoires du Muséum national d\'Histoire naturelle', 8],
    ['The Ohio Journal of Science', 5],
    ['Transactions of the Entomological Society of London', 7],
    ['Treubia', 6],
    ['Wiener Entomologische Monatschrift', 5],
    ['Zootaxa', 96],
    ['Other (24)', 39]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=255)',
    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);