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', 2],
    ['Araújo, Marcel Santos De & Palma, Antonella Di', 73],
    ['Bernardi, Leopoldo F. O.', 2],
    ['Chamberlin, Ralph V. & Mulaik, Stanley B.', 2],
    ['LIU, DONG & YI, TIAN-CI & XU, YUN & ZHANG, ZHI-QIANG', 9],
    ['Ma. Magdalena Vázquez G. & Hans Klompen', 9],
    ['Vázquez, Ma. Magdalena & Araújo, Marcel Santos De', 5],
    ['Vázquez, Ma. Magdalena & Castaño-Meneses, Gabriela', 2],
    ['Vázquez, Ma. Magdalena & Klompen, Hans', 4],
    ['Vázquez, Magdalena & Klompen, Hans', 7],
    ['Vázquez, Maria Magdalena', 3],
    ['Vázquez, Maria Magdalena & Herrera, Ivalú Macarena Ávila', 2],
    ['With, Carl Johannes', 2],
    ['van der Hammen, L.', 5],
    ['Other (9)', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=137)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);