function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Borgmeier, T.', 2],
    ['Camacho, G P & Franco, W & Branstetter, M G & Pie, M R', 1],
    ['Camacho, G. P. & Franco, W. & Branstetter, M. G. & Pie, M. R.', 2],
    ['Clark, J.', 5],
    ['Forel, Auguste-Henri', 1],
    ['Mayr, G.', 1],
    ['Weber, N. A.', 1],
    ['Wheeler, W. M.', 25],
    ['Wild, A. L.', 1],
    ['Wild, Alexander L.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=40)',
    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);