function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chang, Cheon Young & Lee, Jimin & Smith, Robin J.', 1],
    ['Ma, Shunxin & Yu, Na', 5],
    ['Meisch, Claude & Smith, Robin J. & Martens, Koen', 9],
    ['Perez-Gelabert, Daniel E.', 1],
    ['Pinto, R. L. & Rocha, C. E. F. & Martens, K.', 5],
    ['Pinto, Ricardo L. & Rocha, Carlos E. F. & Rossetti, Giampaolo', 2],
    ['Sabater, Lara Milena & Monferran, Mateo Daniel & Higuti, Janet', 4],
    ['Smith, Robin J.', 3],
    ['Smith, Robin James & Chang, Cheon Young', 3],
    ['Smith, Robin James & Lee, Jimin & Chang, Cheon Young', 1],
    ['Tomé, Maria Emilia & Araripe, Rilda & Oliveira, David', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=35)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);