function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bulletin of the Biogeographical Society of Japan', 1],
    ['Bulletin of the Faculty of Fisheries Hokkaido University', 1],
    ['Copeia', 1],
    ['European Journal of Taxonomy', 1],
    ['Galathea Report', 1],
    ['J. L. B. Smith Institute of Ichthyology Special Publication', 1],
    ['Journal and Proceedings of the Asiatic Society of Bengal', 1],
    ['Quarterly Journal of the Taiwan Museum', 1],
    ['Report of the Fisheries and Marine Biological Survey, Union of South Africa', 2],
    ['Sci. Reports, John Murray Exped.', 1],
    ['Voprosy Ikhtiologii', 1],
    ['Zootaxa', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=19)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);