function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Appolloni, Massimo & Smriglio, Carlo & Amati, Bruno', 1],
    ['Collin, Rachel', 8],
    ['DeVries, Thomas J.', 2],
    ['Holtheuer, Jorge & Aldea, Cristian & Schories, Dirk', 1],
    ['Luca, Javier Di & Zelaya, Diego G.', 2],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 1],
    ['Pacaud, Jean-Michel', 1],
    ['Petit, Richard E.', 1],
    ['Rosenfeld, Sebastian & Aldea, Cristian & Mansilla, Andres', 1],
    ['Sacchetti, Claudia & Landau, Bernard & Ávila, Sérgio P.', 2],
    ['Schumacher, Chrétien Fréderic', 1],
    ['Simone, Luiz Ricardo L.', 12],
    ['Strong, Ellen E.', 1],
    ['Tasso, Vicente & El Haddad, Mustapha & Assadi, Carolina', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=36)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);