function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Artüz, M. Levent & Fricke, Ronald', 1],
    ['Beebe, W. & Tee-Van, J.', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 1],
    ['Cisternas, R.', 1],
    ['Cope, Edward Drinker', 1],
    ['Corbin, P. G.', 1],
    ['Duncker, G. & Mohr, E.', 2],
    ['Le Sauvage, E.', 1],
    ['Linnaeus, Carolus', 2],
    ['Love, Milton S. & Bizzarro, Joseph J. & Cornthwaite, Maria', 3],
    ['Rafinesque, Constantine Samuel', 1],
    ['Reinhardt, J. C. H.', 1],
    ['Simian, Gaëlle & Abraham, Daniel & Bailly, Nicolas', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=17)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);