function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bahia, Juliana & Padula, Vinicius & Lavrado, Helena Passeri', 1],
    ['Cuadrado, Daniel & Rodríguez, Jorge & Moro, Leopoldo', 4],
    ['Dixit, Sudhanshu & Raghunathan, C. & Chandra, Kailash', 1],
    ['Faubel, A. & Warwick, R. M.', 2],
    ['Faubel, Anno', 6],
    ['Gammoudi, Mehrez & Garbouj, Myriam & Egger, Bernhard', 1],
    ['Litvaitis, Marian K. & Bolaños, D. Marcela & Quiroga, Sigmer Y.', 1],
    ['Maghsoudlou, Abdolvahab & Rahimian, Hassan', 1],
    ['Newman, Leslie J.', 8],
    ['Norena, Carolina & Marquina, Daniel & Perez, Jacinto', 5],
    ['Noreña, Carolina', 3],
    ['Pitale, Reshma & Apte, Deepak', 5],
    ['Soutullo, Patricia & Cuadrado, Daniel & Noreña, Carolina', 1],
    ['Velasquez, Ximena & Bolaños, D. Marcela & Benayahu, Yehuda', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=40)',
    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);