function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arthropod Systematics & amp; Phylogeny', 5],
    ['Biodiversity Data Journal', 26],
    ['European Journal of Entomology', 1],
    ['European Journal of Taxonomy', 4],
    ['Far Eastern Entomologist', 6],
    ['Florida entomologist', 1],
    ['Journal of Entomology and Zoology', 1],
    ['Journal of Natural History', 9],
    ['Revue suisse de Zoologie', 3],
    ['ZooKeys', 45],
    ['Zoologia', 5],
    ['Zoological Systematics', 4],
    ['Zoological studies', 13],
    ['Zoosystema', 168],
    ['Zootaxa', 528],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=826)',
    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);