function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 2],
    ['Annales du Musée Royal du Congo Belge, Série 8, Zoologiques', 1],
    ['Annales du Musée du Congo Belge, Série 1, Zoologiques', 5],
    ['Aquarien und Terrarien Zeitschrift', 1],
    ['Bulletin Acad. R. Belge, Cl. Sci., 5', 4],
    ['Bulletin de l\'Institut Royal des Sciences Naturelles de Belgique', 3],
    ['Bulletin du Musée Royal d\'Histoire Naturelle de Belgique', 1],
    ['Bulletin du Musée d\'Histoire Naturelle de Belgique', 3],
    ['Bulletin du Muséum National d’Histoire Naturelle, Série 2', 1],
    ['Bulletin of the American Museum of Natural History', 1],
    ['Bulletin of the Museum of Comparative Zoology at Harvard College, 3', 1],
    ['Proceedings of the Zoological Society of London, B', 3],
    ['Revue Zoologique Africaine', 6],
    ['T. F. H. Publications, Inc.', 5],
    ['Transactions of the Zoological Society of London', 7],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=48)',
    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);