function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Babenko, Anatoly & Stebaeva, Sophya & Turnbull, Matthew S.', 2],
    ['Bendjaballah, Mohamed & Zoughailech, Abdelmalek', 1],
    ['Beruete, Enrique & Arbea, Javier I. & Baquero, Enrique', 15],
    ['Fanciulli, Pietro Paolo & Fabbri, Roberto & Carapelli, Antonio', 1],
    ['Fanciulli, Pietro Paolo & Loreti, Mara & Dallai, Romano', 5],
    ['Jordana, Rafael & Baquero, Enrique & Reboleira, Ana Sofia', 1],
    ['Mayvan, Mahmood Mehrafrooz & Greenslade, Penelope', 1],
    ['Nguyen, Anh T. T. & Thuy, Kim N. & Arbea, Javier I.', 1],
    ['Parimuchová, Andrea & Barjadze, Shalva & Maghradze, Eter', 2],
    ['Parimuchová, Andrea & Kováč, Ľubomír', 4],
    ['Thibaud, Jean-Marc', 11],
    ['Yahyapour, Eliye & Shayanmehr, Masoumeh', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=45)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);