function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Akyazı, Rana & Welbourn, Cal & Liburd, Oscar E.', 1],
    ['Araújo, Marcel Santos De & Feres, Reinaldo José Fazzio', 1],
    ['Argolo, Poliane Sá & Vital Santos, Renata M.', 1],
    ['Demite, Peterson R. & Lofego, Antonio C. & Feres, Reinaldo J. F.', 1],
    ['Ferragut, Francisco & Moraes, Gilberto Jose & Navia, Denise', 1],
    ['Guanilo, Alberto Daniel & Moraes, Gilberto José De', 2],
    ['Kreiter, Serge & Tixier, Marie-Stéphane & Etienne, Jean', 1],
    ['Liao, Jhih-Rong & Ho, Chyi-Chen & Ko, Chiun-Cheng', 1],
    ['Lofego, A. C. & De Moraes, G. J. & Castro, L. A. S.', 1],
    ['Nuvoloni, Felipe Micali & Lofego, Antonio Carlos', 1],
    ['Rezende, J. M. & Lofego, A. C.', 1],
    ['Tixier, Marie-Stephane & Auger, Philippe & Migeon, Alain', 1],
    ['Trincado, R. D. & Martin, J. P. I. & Méndez Rosa, D. D.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=14)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);