function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Araújo, Marcel Santos De & Bichuette, Maria Elina', 1],
    ['Araújo, Marcel Santos De & Feres, Reinaldo José Fazzio', 1],
    ['Araújo, Marcel Santos De & Palma, Antonella Di', 24],
    ['Bernardi 1, Leopoldo Ferreira de Oliveira', 1],
    ['Bernardi, L. P. de O. & Klompen, H. & Ferreira, R. L.', 1],
    ['Bernardi, Leopoldo F. O.', 2],
    ['Bernardi, Leopoldo Ferreira De Oliveira', 1],
    ['Bernardi, Leopoldo Ferreira de Oliveira', 1],
    ['Bernardi, Leopoldo Ferreira de Oliveira & Klompen, Hans', 1],
    ['Chamberlin, Ralph V. & Mulaik, Stanley B.', 2],
    ['LIU, DONG & YI, TIAN-CI & XU, YUN & ZHANG, ZHI-QIANG', 3],
    ['Vázquez, Ma. Magdalena & Castaño-Meneses, Gabriela', 2],
    ['Vázquez, Ma. Magdalena & Klompen, Hans', 4],
    ['Vázquez, Magdalena & Klompen, Hans', 4],
    ['Vázquez, Maria Magdalena', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=51)',
    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);