function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Biodiversity Data Journal', 79],
    ['Bulletin of the National Science Museum, Series A, Zoology', 1],
    ['Can Ent', 1],
    ['European Journal of Taxonomy', 569],
    ['Far Eastern Entomologist', 7],
    ['Insecta Mundi', 11],
    ['Journal R Agr Soc Engl', 1],
    ['Journal of Natural History', 15],
    ['Laurentius Salvius', 8],
    ['MITTEILUNGEN über Höhlen- und Karstforschung Zeitschrift des Hauptverbandes Deutscher Höhlenfqrscher Jahrgang 1933', 2],
    ['Papéis Avulsos de Zoologia', 2],
    ['Phytotaxa', 12],
    ['Revue suisse de Zoologie', 24],
    ['ZooKeys', 83],
    ['Zootaxa', 330],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1147)',
    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);