function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anales del Instituto de Biologia Universidad de Mexico', 1],
    ['Anales del Instituto de Biología, Universidad Nacional Autónoma de México (Series Zoología)', 1],
    ['Annual Number Natn Acad Sci lndia', 1],
    ['Indian Journal of Helminthology', 1],
    ['Indian Journal of Veterinary Science', 1],
    ['Izvestiya Tikhookeanskoi Nauchno-Promyslovi Ostantsii', 1],
    ['Japanese Journal of Parasitology', 1],
    ['Japanese Journal of Zoology', 1],
    ['Journal of Fujian Teachers University (Natural Science)', 1],
    ['Journal of Parasitology', 2],
    ['Keigaku Publishing Company', 1],
    ['Papers from the Tortugas Laboratory of the Carnegie Institute of Washington', 1],
    ['Parasitology', 1],
    ['Proceedings of Parasitology', 1],
    ['Proceedings of the Helminthological Society of Washington', 3],
    ['Other (8)', 8]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=26)',
    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);