function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Medicinae Okayama', 4],
    ['Archiv für Naturgeschichte', 2],
    ['Bulletin of the Department of Zoology University of the Panjab (New Series)', 2],
    ['Folia Parasitologica', 5],
    ['Indian Journal of Helminthology', 6],
    ['Indian Journal of Parasitology', 2],
    ['Japanese Journal of Parasitology', 2],
    ['Japanese Journal of Zoology', 3],
    ['Journal of Fujian Teachers University (Natural Science)', 2],
    ['Journal of Parasitology', 2],
    ['Kanpur University Research Journal (Science)', 6],
    ['Pakistan Journal of Zoology', 3],
    ['Proceedings of the Helminthological Society of Washington', 4],
    ['Proceedings of the Indian Academy of Sciences, Section B', 3],
    ['Rivista di Parassitologia', 7],
    ['Other (22)', 24]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=77)',
    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);