function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Berto, Bruno Pereira & Flausino, Walter & Luz, Hermes Ribeiro', 1],
    ['Karadjian, Grégory & Martinsen, Ellen & Duval, Linda', 1],
    ['Lopes, Bruno Do Bomfim & Berto, Bruno Pereira', 1],
    ['Matta, Nubia E. & Lotta, Ingrid A. & Valkiūnas, Gediminas', 1],
    ['Oliveira, Mariana S. & Oliveira, Jhon Lennon G.', 1],
    ['Rodrigues, Mariana Borges & Silva, Lidiane Maria Da', 1],
    ['Tucunduva, Priscila & Rodrigues, Mariana Borges', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=7)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);