function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ardila Rodríguez, C. A.', 7],
    ['Ardila Rodríguez, Carlos A.', 4],
    ['Arratia, G.', 1],
    ['Arratia, G. & Menu-Marque, S.', 2],
    ['Barbosa, M. A. & Costa, Wilson J. E. M.', 1],
    ['Bizerril, Carlos Roberto S. F.', 1],
    ['Castellanos-Morales, Cesar A.', 1],
    ['Costa, Wilson J. E. M.', 4],
    ['Fernández, L. A. & Vari, Richard P.', 3],
    ['Katz, A. M. & Barbosa, M. a. s. v. & Costa, Wilson J. E. M.', 2],
    ['Philippi, R. A.', 3],
    ['Triques, M. L. & Vono, V.', 3],
    ['Weyenbergh, H.', 2],
    ['Wolmar Benjamin Wosiacki', 2],
    ['Wosiacki, Wolmar Benjamin & Garavello, J. C.', 3],
    ['Other (12)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=51)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);