function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Zoologica Sinica', 1],
    ['Annales de Parasitologie Humaine et Comparée', 2],
    ['Annales du Musée de l\'Afrique Central, Series in- 8 °, Sciences Zoologiques', 2],
    ['Biodiversity Data Journal', 11],
    ['Indian Journal of Helminthology', 2],
    ['Japanese Journal of Medical Sciences', 3],
    ['Memórias do Instituto Oswaldo Cruz', 4],
    ['Miscellanea Helminthologica Madagascariensis', 2],
    ['Philippine Journal of Science, Section D', 3],
    ['Proceedings of the Helminthological Society of Washington', 3],
    ['Proceedings of the Linnean Society of New South Wales', 2],
    ['Proceedings of the National Academy of Sciences, India, Section B, Biological Sciences', 2],
    ['Zoologische Jahrbucher, Abteilung für Systematik', 3],
    ['Zoologischer Anzeiger', 2],
    ['Zootaxa', 12],
    ['Other (14)', 14]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=68)',
    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);