function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bulletin of the National Science Museum, Series A, Zoology', 7],
    ['Indian Journal of Helminthology', 6],
    ['Japanese Journal of Zoology', 5],
    ['Journal of Parasitology', 23],
    ['Journal of helminthology', 7],
    ['Kanpur University Research Journal (Science)', 5],
    ['Pakistan Journal of Zoology', 10],
    ['Parasitology', 6],
    ['Parasitology International', 15],
    ['Rivista di Parassitologia', 26],
    ['Systematic Parasitology', 9],
    ['Transactions of the American Microscopical Society', 6],
    ['Tulane Studies in Zoology', 10],
    ['Universidad Nacional Autonoma de Mexico', 5],
    ['Zootaxa', 6],
    ['Other (78)', 136]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=282)',
    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);