function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arantes, Tiago & Souza-Shibatta, Lenice', 1],
    ['Bond-Buckup, Georgina & Jara, Carlos G. & Buckup, Ludwig', 18],
    ['Bueno, Sérgio Luiz De Siqueira', 2],
    ['Bueno, Sérgio Luiz De Siqueira & Camargo, Alexandre Lopes', 1],
    ['César, Inés I. & Damborenea, Cristina', 13],
    ['Diaz, Analía R. & Álvarez, Victor Hugo Merlo', 5],
    ['Jacobucci, Giuliano Buzá & Bueno, Alessandra A. De P.', 1],
    ['Marçal, Ingrid Costa & Páez, Fernanda Polli', 3],
    ['Moraes, Juliana Cristina Bertacini & Terossi, Mariana', 8],
    ['Páez, Fernanda Polli & Marçal, Ingrid Costa', 1],
    ['Santos, Sandro & Bond-Buckup, Georgina & Buckup, Ludwig', 3],
    ['Santos, Sandro & Bond-Buckup, Georgina & Pérez-Losada, Marcos', 1],
    ['Trombetta, Alana De Souza & Páez, Fernanda Polli', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=58)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);