function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bruce, Niel L.', 22],
    ['Hughes, Lauren E. & Bruce, Niel L. & Osborn, Karen', 2],
    ['Kensley, Rian & Chan, Tin-Yam', 1],
    ['Lanchester, W. F.', 1],
    ['Shimomura, Michitaka & Bruce, Niel L.', 3],
    ['Trilles, Jean-Paul & Justine, Jean-Lou', 2],
    ['Vigneshwaran, P. & Ravichandrana, S. & Kumar Ajith ,, T. T.', 2],
    ['Wal, Sarita van dar & Haug, Joachim T.', 6],
    ['Yu, Haiyan & Bruce, Niel L.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=41)',
    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);