function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Entomologica Musei Nationalis Pragae', 51],
    ['Beiträge Zur Entomologie = Contributions to Entomology', 43],
    ['Biodiversity Data Journal', 23],
    ['Check List', 9],
    ['Deutsche Entomologische Zeitschrift', 14],
    ['Entomo Helvetica', 7],
    ['European Journal of Entomology', 12],
    ['Linzer biologische Beiträge', 241],
    ['Pacific Insects', 14],
    ['Papéis Avulsos de Zoologia', 8],
    ['Revista Brasileira de Biologia', 11],
    ['Zoological Systematics', 9],
    ['Zoosystema', 30],
    ['Zoosystematica Rossica', 7],
    ['Zootaxa', 689],
    ['Other (35)', 80]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=1248)',
    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);