function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Carrenho, Renan & Rodrigues, Higor D. D.', 6],
    ['Floriano, Carla Fernanda Burguez & Rodrigues, Higor D. D.', 3],
    ['Kment, Petr & Kolínová, Zdislava & Heiss, Ernst', 1],
    ['Moreira, F. F. F. & Nessimian, J. L. & Rúdio, J. A.', 1],
    ['Moreira, Felipe Ferraz Figueiredo & Barbosa, Julianna Freires', 2],
    ['Rodrigues, Higor D. D. & Arango, Luisa Fernanda Álvarez', 2],
    ['Rodrigues, Higor D. D. & Melo, Alan Lane De', 9],
    ['Rodrigues, Higor D. D. & Moreira, Felipe Ferraz Figueiredo', 4],
    ['Rodrigues, Juliana Mourao dos Santos', 1],
    ['Rodrigues, Juliana Mourão Dos Santos', 4],
    ['dos Santos, Suzane E. & Rodrigues, Juliana M. S.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=35)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);