function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Braga, L. & Azpelicueta, María de las Mercedes', 1],
    ['Ceolin Bortolo, Gustavo & Lima, Flávio C. T. & Melo, Bruno F.', 1],
    ['Eigenmann, C. H. & Allen, W. R.', 3],
    ['Fowler, Henry Weed', 3],
    ['Gaye-Siessegger, Julia & Fricke, Ronald', 1],
    ['Géry, J. & Planquette, P. & Le Bail, P. - Y.', 1],
    ['Vari, Richard P.', 13],
    ['Vari, Richard P. & Barriga S., R.', 1],
    ['Vari, Richard P. & Chang, F.', 1],
    ['Vari, Richard P. & Géry, J.', 1],
    ['Vari, Richard P. & Reis, Roberto E.', 1],
    ['Vari, Richard P. & Williams Vari, A.', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=30)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);