function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Gattolliat, Jean-Luc & Kondratieff, Boris C.', 3],
    ['Gattolliat, Jean-Luc & Samraoui, Boudjema & Benhadji, Nadhira', 1],
    ['Kaltenbach, Thomas & Garces, Jhoana & Gattolliat, Jean-Luc', 2],
    ['Kaltenbach, Thomas & Garces, Jhoana M. & Gattolliat, Jean-Luc', 20],
    ['Kaltenbach, Thomas & Gattolliat, Jean-Luc', 87],
    ['Kaltenbach, Thomas & Mary, Nathalie & Gattolliat, Jean-Luc', 2],
    ['Kaltenbach, Thomas & Surbakti, Suriani & Kluge, Nikita J.', 3],
    ['Kaltenbach, Thomas & Vuataz, Laurent & Gattolliat, Jean-Luc', 10],
    ['Kluge, Nikita & Sivaruban, T. & Srinivasan, Pandiarajan', 3],
    ['Kluge, Nikita J.', 1],
    ['Kluge, Nikita J. & Novikova, Eugenia A.', 2],
    ['Kubendran, T. & Balasubramanian, C. & Selvakumar, C.', 1],
    ['Shi, Weifang & Tong, Xiaoli', 6],
    ['Wagner, André', 1],
    ['Webb, J. M.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=143)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);