function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Azevedo-Santos, Valter M. & Katz, Axel M. & Zawadzki, Cláudio H.', 1],
    ['Borodin, N. A.', 1],
    ['Deprá, Gabriel de Carvalho & Slobodian, Veronica', 1],
    ['Eigenmann, C. H.', 2],
    ['Eigenmann, C. H. & Allen, W. R.', 1],
    ['Gomes, A. L. & Schubart, O.', 1],
    ['Inger, R. F.', 1],
    ['Pearson, N. E.', 1],
    ['Sébastien Brosse & Fréderic Melki & Régis Vigouroux', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=11)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);