function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Zoologica Academiae Scientiarum Hungaricae', 14],
    ['American Museum Novitates', 19],
    ['Annale van die Suid-Afrikaanse Museum [Annals of the South African Museum]', 3],
    ['BMC Zooloy', 3],
    ['Biodiversity Data Journal', 4],
    ['Ecologica Montenegrina', 25],
    ['Journal of Natural History', 4],
    ['Laurentius Salvius', 9],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 5],
    ['Records of the Indian Museum', 3],
    ['Species Diversity', 11],
    ['Taylor & Francis', 3],
    ['ZooKeys', 23],
    ['Zoosystematics and Evolution', 5],
    ['Zootaxa', 57],
    ['Other (43)', 56]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=244)',
    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);