function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Annales de Parasitologie Humaine et Comparée', 1],
    ['Annales du Musée Royal du Congo Belge, Série 4, Zoologiques', 1],
    ['Arb. Univ. Bergen Mat. - Naturv.', 1],
    ['Bamidgeh', 1],
    ['Bulletin de la Société Neuchâteloise des Sciences Naturelles', 2],
    ['Bulletin de la Société des Sciences Naturelles de Neuchâtel', 1],
    ['Indian Journal of Helminthology', 3],
    ['Indian Journal of Zootomy', 3],
    ['Onderstepoort Journal of Veterinary Research', 2],
    ['Philippine Journal of Science', 4],
    ['Proceedings of the Academy of Natural Sciences of Philadelphia', 2],
    ['Proceedings of the Indian Academy of Sciences, Section B', 3],
    ['Zoologische Jahrbuecher Abteilungen für Systematik', 7],
    ['Zoologischer Anzeiger', 5],
    ['Zootaxa', 5],
    ['Other (18)', 18]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=59)',
    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);