function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['American Museum Novitates', 1],
    ['Asiatic Researches', 11],
    ['Ballière', 1],
    ['Biodiversity Data Journal', 19],
    ['Journal and Proceedings of the Asiatic Society of Bengal', 1],
    ['Journal of Hymenoptera Research', 18],
    ['Linzer biologische Beiträge', 4],
    ['Madras Journal of Literature and Science', 4],
    ['Proceedings of the Zoological Society of London, B', 1],
    ['Transactions of the Entomological Society of London', 2],
    ['Zootaxa', 13]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=75)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);