function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Herpetologica Sinica', 1],
    ['Acta Medicinae Okayama', 1],
    ['Acta Zoologica Sinica', 1],
    ['Bolletino della Società Adriatica di Scienze Naturali in Trieste', 2],
    ['Bulletin of the United States Bureau of Fisheries', 2],
    ['International Journal for Parasitology', 2],
    ['Journal of Parasitology', 5],
    ['Mémoires de l\'Académie Royal des Sciences, des Lettres et des Beaux-Arts de Belgique', 2],
    ['Philippine Journal of Science', 2],
    ['Proceedings of the Helminthological Society of Washington', 5],
    ['Rivista di Parassitologia', 2],
    ['Studia Marina Sinica', 2],
    ['Systematic Parasitology', 2],
    ['United States Fish Commission Bulletin for 1899', 3],
    ['Zoologischer Anzeiger', 2],
    ['Other (27)', 27]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=61)',
    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);