function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 14],
    ['Archiv für Naturgeschichte, Abteilung A', 296],
    ['Biodiversity Data Journal', 6],
    ['Far Eastern Entomologist', 38],
    ['Insecta Mundi', 21],
    ['Journal of Hymenoptera Research', 31],
    ['Journal of Natural History', 8],
    ['Journal of the Proceedings of the Linnean Society of London, Zoology', 8],
    ['Laurentius Salvius', 9],
    ['Linzer biologische Beiträge', 75],
    ['Pacific insects', 7],
    ['Papéis Avulsos de Zoologia', 24],
    ['ZooKeys', 22],
    ['Zoosystema', 14],
    ['Zootaxa', 1478],
    ['Other (9)', 13]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=2064)',
    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);