function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Ichthyologica et Piscatoria', 1],
    ['Annale van die Suid-Afrikaanse Museum [Annals of the South African Museum]', 1],
    ['Annales du Musee Royale de l\'Afrique Centrale, Zoologie, Serie 8', 4],
    ['Annales du Musée du Congo Belge, Série 1, Zoologiques', 1],
    ['Annali del Museo Civico di Storia Naturale di Genova', 1],
    ['Arq. Mus. Bocage Lisboa, A', 1],
    ['Biodiversity Data Journal', 2],
    ['Bulletin de la Société Philomathique de Paris, Série 7', 1],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College, 3', 1],
    ['Journal of Natural History', 2],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 4],
    ['Proceedings of the Zoological Society of London, B', 3],
    ['Revue Zoologique Africaine', 2],
    ['Transactions of the Zoological Society of London', 2],
    ['Zootaxa', 12],
    ['Other (11)', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=49)',
    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);