function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Canejo, Rafael P. R. & Melo, Alan Lane De', 1],
    ['Floriano, Carla Fernanda Burguez & Cavichioli, Rodney Ramiro', 2],
    ['Lima Franco, Cleilton & Mourão dos Santos Rodrigues, Juliana', 1],
    ['Moreira, Felipe Ferraz Figueiredo & Barbosa, Julianna Freires', 6],
    ['Moreira, Felipe Ferraz Figueiredo & Rodrigues, Higor D. D.', 2],
    ['Motta, Flávia Souza Da & Moreira, Felipe Ferraz Figueiredo', 1],
    ['Rodrigues, Juliana Mourao dos Santos', 2],
    ['Rodrigues, Juliana Mourão Dos Santos', 1],
    ['Rodrigues, Juliana Mourão Dos Santos & Nery, Leticia', 1],
    ['Zettel, Herbert & Tran, A. D.', 1],
    ['dos Santos, Suzane E. & Rodrigues, Juliana M. S.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=20)',
    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);