function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['A. Constable', 2],
    ['American Museum Novitates', 5],
    ['Annales du Musée du Congo Belge, Série 1, Zoologiques', 3],
    ['Biodiversity Data Journal', 2],
    ['Bulletin Acad. R. Belge, Cl. Sci., 5', 3],
    ['Bulletin de la Société Zoologique de France', 2],
    ['Bulletin du Musée Royal d\'Histoire Naturelle de Belgique', 2],
    ['Notes from the Leyden Museum', 4],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 8],
    ['Proceedings of the Zoological Society of London, B', 9],
    ['Raffles Bulletin of Zoology', 9],
    ['Revue Zoologique Africaine', 3],
    ['Revue de Zoologie et de Botanique Africaines', 4],
    ['Zoological Journal of the Linnean Society', 5],
    ['Zootaxa', 20],
    ['Other (38)', 47]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=128)',
    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);