function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Zoologica Sinica', 7],
    ['African Invertebrates', 3],
    ['Annales de Parasitologie Humaine et Comparée', 3],
    ['Australian Journal of Experimental Biology and Medicine', 3],
    ['Biodiversity Data Journal', 7],
    ['Centralblatt für Bakteriologie, Parasitenkunde und Infektionskrankheiten', 4],
    ['Göteborgs K. Vetensk. - o. Vitter. Samh. Handl.', 4],
    ['Indian Journal of Helminthology', 7],
    ['Japanese Journal of Zoology', 4],
    ['Journal of Parasitology', 18],
    ['Osnovy Trematodologii', 6],
    ['Rivista di Parassitologia', 8],
    ['The American Midland Naturalist', 4],
    ['Transactions of the American Microscopical Society', 6],
    ['Zootaxa', 37],
    ['Other (78)', 110]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=231)',
    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);