function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Zoologica Academiae Scientiarum Hungaricae', 11],
    ['American Museum Novitates', 12],
    ['Bulletin of entomological research', 1],
    ['Conilon coffee - The Coffea canephora produced in Brazil', 1],
    ['Entomologist\'s monthly magazine', 1],
    ['Insecta Mundi', 3],
    ['Japanese Journal of Systematic Entomology', 1],
    ['The Journal of the Quekett Microscopical Club', 1],
    ['ZooKeys', 22],
    ['Zoological Systematics', 8],
    ['Zoosystema', 5],
    ['Zootaxa', 44]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=110)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);