function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 1],
    ['Carter, H. J. & Sulak, K. J.', 1],
    ['Gilbert, Charles H.', 1],
    ['Goode, G. B. & Bean, T. H.', 1],
    ['Günther, Albert Charles Lewis Gotthilf', 1],
    ['Love, Milton S. & Bizzarro, Joseph J. & Cornthwaite, Maria', 1],
    ['Mincarone, Michael M. & Nielsen, Jørgen G. & Costa, Paulo A. S.', 3],
    ['Nybelin, O.', 1],
    ['Schwarzhans, Werner W. & Møller, Peter R.', 17],
    ['Vaillant, L. L.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=29)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);