function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Zoologica Academiae Scientiarum Hungaricae', 3],
    ['Biodiversity Data Journal', 194],
    ['Biosystematica', 3],
    ['Deutsche Entomologische Zeitschrift', 21],
    ['European Journal of Taxonomy', 14],
    ['Insecta Mundi', 33],
    ['Journal of Natural History', 4],
    ['Linzer biologische Beiträge', 112],
    ['Memoirs of Museum Victoria', 88],
    ['Papéis Avulsos de Zoologia', 3],
    ['Records of the Zoological Survey of India', 7],
    ['ZooKeys', 92],
    ['Zoological Systematics', 4],
    ['Zoosystema', 24],
    ['Zootaxa', 211],
    ['Other (2)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=816)',
    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);