function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abo-Shnaf, Reham I. A. & De, Gilberto J.', 2],
    ['Barbar, Z.', 1],
    ['Chatti, A. & Kreiter, S. & Lebdi-Grissa, K. & Ksantini, M.', 1],
    ['De, Gilberto J. & Zannou, Ignace D. & Ueckermann, Eddie A.', 2],
    ['El-Banhawy, E. M. & Knapp, M.', 2],
    ['Kreiter, Serge & Douin, Martial & Tixier, Marie Stephane', 2],
    ['Kreiter, Serge & Payet, Rose-My & Fillâtre, Jacques', 2],
    ['Kreiter, Serge & Payet, Rose-My & Mouigni, Hadji', 2],
    ['Lofego, Antonio Carlos & Barbosa, Marina Ferraz De Camargo', 2],
    ['Tixier, Marie-Stephane & Allam, Latifa & Douin, Martial', 1],
    ['ZahidiK, Abdelaziz & Akchour, Abdellah & K, Serge Kreiter', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=19)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);