function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bleeker, Pieter', 5],
    ['Chaudhuri, B. L.', 1],
    ['Goutham-Bharathi, M. P. & Sirajudheen, T. K.', 1],
    ['Hollard, H. L. G. M.', 2],
    ['LARSON, HELEN K. & WILLIAMS, REX S. & HAMMER, MICHAEL P.', 1],
    ['Laan, Richard Van Der', 1],
    ['Laan, Richard Van Der & Eschmeyer, William N. & Fricke, Ronald', 1],
    ['Ogilby, J. D.', 1],
    ['Pietschmann, V.', 1],
    ['Regan, C. T.', 1],
    ['Yennawar, Prasanna & Mohapatra, Anil & Tudu, Prasad Chandra', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=16)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);