function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alexander, Timothy & Seehausen, Ole', 2],
    ['Ayres, W. O.', 2],
    ['Bean, T. H.', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 1],
    ['Cope, Edward Drinker', 1],
    ['Dawson, J. W.', 1],
    ['Denys, Gael & Geiger, Matthias F. & Persat, H. & Keith, Philippe', 1],
    ['Eagderi, Soheil & Mouludi-Saleh, Atta & Esmaeili, Hamid Reza', 1],
    ['Girard, Charles Frédéric', 1],
    ['Guichenot, A.', 1],
    ['Houttuyn, M.', 1],
    ['Kirtland, J. P.', 1],
    ['Linnaeus, Carolus', 12],
    ['Love, Milton S. & Bizzarro, Joseph J. & Cornthwaite, Maria', 1],
    ['Sauvage, H. E.', 4],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=38)',
    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);