function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alexandre C. Ribeiro & Marcel R. Cavallaro & Otávio Froehlich', 18],
    ['Almirón, Adriana & Casciotta, Jorge & Piálek, Lubomír', 1],
    ['Amaral Campos, A.', 1],
    ['Batista-Silva, Valéria Flávia & Frota, Augusto', 1],
    ['Bertora, Andrea & Grosman, Fabián & Sanzano, Pablo', 1],
    ['Diniz, Paulo Baltazar & Siqueira, Hatus de Oliveira', 1],
    ['Menezes, Naercio A. & Géry, J.', 3],
    ['Menezes, Naércio Aquino & Ribeiro, Alexandre Cunha', 2],
    ['Mirande, Juan Marcos & Aguilera, Gastón', 3],
    ['Ota, Renata Rúbia & Deprá, Gabriel de Carvalho', 3],
    ['Reia, Lais & S. da Costa e Silva, Gabriel', 1],
    ['Ribeiro, Alexandre C. & Cavallaro, Marcel R. & Froehlich, Otávio', 1],
    ['de Brito, Victor & Buckup, Paulo Andreas', 1],
    ['dos Santos, Sergio Alexandre & de Britto, Marcelo Ribeiro', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=38)',
    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);