function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 13],
    ['Biodiversity Data Journal', 497],
    ['Bulletin of the American Museum of Natural History', 42],
    ['E. W. Janson', 14],
    ['European Journal of Taxonomy', 196],
    ['Far Eastern Entomologist', 36],
    ['Insecta Mundi', 20],
    ['Journal of Hymenoptera Research', 41],
    ['Journal of Melittology', 25],
    ['Journal of Natural History', 65],
    ['Linzer biologische Beiträge', 359],
    ['Papéis Avulsos de Zoologia', 44],
    ['Raffles Bulletin of Zoology', 18],
    ['ZooKeys', 216],
    ['Zootaxa', 1548],
    ['Other (17)', 61]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=3195)',
    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);