function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Parasitologica', 6],
    ['Acta Zootaxonomica Sinica', 3],
    ['Bulletin of the British Museum (Natural History), Zoology Series', 4],
    ['Bulletin of the National Science Museum, Series A, Zoology', 7],
    ['Japanese Journal of Zoology', 5],
    ['Journal of Parasitology', 8],
    ['Keigaku Publishing Company', 10],
    ['Papers from the Tortugas Laboratory of the Carnegie Institute of Washington', 3],
    ['Parasitology International', 3],
    ['Proceedings of the Helminthological Society of Washington', 3],
    ['Revue suisse de Zoologie', 4],
    ['Rivista di Parassitologia', 5],
    ['Satyû Yamaguti', 5],
    ['Systematic Parasitology', 6],
    ['The American Midland Naturalist', 7],
    ['Other (48)', 65]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=144)',
    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);