function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adams, Arthur', 8],
    ['Amati, B.', 1],
    ['Amati, B. & Appolloni, Massimo & Quaggiotto, Ermanno', 3],
    ['Amati, Bruno & Appolloni, Massimo & Giulio, Andrea Di', 12],
    ['Amati, Bruno & Giulio, Andrea Di & Oliverio, Marco', 9],
    ['Amati, Bruno & Taviani, Marco & Oliverio, Marco', 3],
    ['Appolloni, Massimo & Smriglio, Carlo & Amati, Bruno', 2],
    ['Gofas, Serge', 18],
    ['Hansen, Thomas', 3],
    ['Hasegawa, Kazunori', 3],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 6],
    ['Negri, Mauro Pietro & Corselli, Cesare', 2],
    ['Oliver, Joan Daniel & Gofas, Serge & Urgorri, Victoriano', 14],
    ['Sacchetti, Claudia & Landau, Bernard & Ávila, Sérgio P.', 4],
    ['Thivaiou, Danae & Harzhauser, Mathias & Koskeridou, Efterpi', 3],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=95)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);