function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andrade, Breno Neves & Langeani, Francisco', 1],
    ['Cherobim, Arieli Matheus & Lazzarotto, Henrique', 1],
    ['De Oliveira, José C. & Oyakawa, Osvaldo T.', 1],
    ['De Oliveira, Rianne C. & Ota, Renata R. & Deprá, Gabriel C.', 10],
    ['Fernando C. Jerep & Oscar A. Shibatta & Edson H. L. Pereira', 2],
    ['Langeani, Francisco', 7],
    ['Pereira, Edson H. L. & Reis, Roberto E.', 1],
    ['Roxo, Fabio F. & Silva, Gabriel S. C. & Zawadzki, Claudio H.', 1],
    ['Roxo, Fábio F. & Oliveira, Claudio & Zawadzki, Cláudio H.', 3],
    ['Roxo, Fábio F. & Silva, Gabriel S. C. & Zawadzki, Cláudio H.', 1],
    ['Silva, Gabriel S. C. & Reia, Lais & Zawadzki, Cláudio H.', 1],
    ['Zawadzki, Cláudio Henrique & Pavanelli, Carla Simone', 5],
    ['de Brito, Victor & Buckup, Paulo Andreas', 1],
    ['dos Santos, Sergio Alexandre & de Britto, Marcelo Ribeiro', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=37)',
    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);