function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Parasitologica', 1],
    ['Acta Zoologica Academiae Scientiarum Hungaricae', 1],
    ['Acta Zootaxonomica Sinica', 1],
    ['Anales del Instituto de Biologia Universidad de Mexico', 1],
    ['Bulletin of the National Science Museum, Series A, Zoology', 1],
    ['Dobutsugaku Zasshi', 1],
    ['Indian Journal of Helminthology', 1],
    ['Indian Journal of Veterinary Science', 1],
    ['Invertebrate systematics', 4],
    ['Journal of the Helminthological Society of Washington', 3],
    ['Keigaku Publishing Company', 2],
    ['Studia Marina Sinica', 2],
    ['Systematic Parasitology', 2],
    ['Transactions of the American Microscopical Society', 2],
    ['Zootaxa', 14],
    ['Other (10)', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=47)',
    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);