function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Allan Hancock Pacific Expeditions', 3],
    ['Archivos do Instituto Biologico Sao Paulo', 3],
    ['Atas da Sociedade de biologia do Rio de Janeiro', 2],
    ['Bulletin of the Academy of Sciences Allahabad', 4],
    ['Centralblatt für Bakteriologie, Parasitenkunde und Infektionskrankheiten', 2],
    ['Folia Parasitologica', 2],
    ['Indian Journal of Helminthology', 4],
    ['Japanese Journal of Parasitology', 2],
    ['Journal of Parasitology', 3],
    ['Papers from the Tortugas Laboratory of the Carnegie Institute of Washington', 4],
    ['Parasitology', 3],
    ['Proceedings of the Helminthological Society of Washington', 3],
    ['Revue suisse de Zoologie', 7],
    ['Systematic Parasitology', 3],
    ['Zootaxa', 10],
    ['Other (47)', 53]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=108)',
    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);