function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Arachnologica', 27],
    ['Biodiversity Data Journal', 5],
    ['Bulletin of the National Museum of Nature and Science, Series A (Zoology)', 2],
    ['Bulletin of the National Science Museum, Series A (Zoology)', 5],
    ['Far Eastern Entomologist', 1],
    ['Insect Systematics and Diversity', 1],
    ['Journal of Species Research', 7],
    ['Species Diversity', 4],
    ['Zoological Systematics', 3],
    ['Zoosystema', 9],
    ['Zoosystematics and Evolution', 3],
    ['Zootaxa', 83]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=150)',
    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);