function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Acta Ichthyologica et Piscatoria', 1],
    ['Biblioteca de Clasicos Cubanos', 1],
    ['Check List', 1],
    ['Mémoires Institut d’Egypt', 1],
    ['Pacific Science', 1],
    ['Proceedings of the Linnean Society of New South Wales', 1],
    ['Proceedings of the Zoological Society of London, B', 2],
    ['Records of the Zoological Survey of India', 1],
    ['Sci. Reports, John Murray Exped.', 1],
    ['Uo [Japanese Society of Ichthyology]', 3],
    ['Zootaxa', 14],
    ['l\'Impremerie Nationale', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=28)',
    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);