function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Allan Hancock Pacific Expeditions', 5],
    ['Angewandte Parasitologie', 7],
    ['Atas da Sociedade de biologia do Rio de Janeiro', 4],
    ['Helminthologia', 4],
    ['Indian Journal of Helminthology', 9],
    ['Indian Journal of Veterinary Science and Animal Husbandry', 4],
    ['Japanese Journal of Zoology', 6],
    ['Journal of Parasitology', 6],
    ['Journal of helminthology', 4],
    ['Keigaku Publishing Company', 10],
    ['Papers from the Tortugas Laboratory of the Carnegie Institute of Washington', 5],
    ['Proceedings of the Helminthological Society of Washington', 5],
    ['Rivista di Parassitologia', 17],
    ['Science Publications', 6],
    ['Systematic Parasitology', 14],
    ['Other (75)', 119]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=225)',
    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);