function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Appolloni, Massimo & Smriglio, Carlo & Amati, Bruno', 9],
    ['Bieler, Rüdiger & Collins, Timothy M. & Golding, Rosemary E.', 1],
    ['Daudin, F. M.', 1],
    ['Hansen, Thomas', 2],
    ['Lam, Katherine & Morton, Brian & Leung, K. F.', 1],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 1],
    ['Schiaparelli, Stefano & Métivier, Bernard', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=16)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);