function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Beck, Robin M. D. & Voss, Robert S. & Jansa, Sharon A.', 2],
    ['CROSBY, KIRSTEN & NORRIS, CHRISTOPHER A.', 3],
    ['Colin P. Groves', 25],
    ['Jackson, Stephen M. & Jansen, Justin J. F. J.', 2],
    ['James H. Honacki & Kenneth E. Kinman & James W. Koeppl', 19],
    ['Parnaby, Harry & Gill, Anthony C.', 2],
    ['Parnaby, Harry E. & Ingleby, Sandy & Divljan, Anja', 8],
    ['Russell A. Mittermeier & Don E. Wilson', 30],
    ['Spratt, David M.', 1],
    ['Storr, Gottlieb Konrad Christian', 1],
    ['Wiig, Øystein & Bachmann, Lutz', 1],
    ['Wilson, Don E. & Reeder, DeeAnn', 50]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=144)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);