function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Koch, Frank & Pauly, Alain & Hora, Zewdu A. & Boevé, Jean-Luc', 19],
    ['Liston, A. D. & Knight, G. T. & Heibo, E. & Bland, K. P.', 3],
    ['Liston, Andrew D. & Jacobs, Hans-Joachim & Prous, Marko', 3],
    ['Liston, Andrew D. & Knight, Guy T. & Sheppard, David A.', 20],
    ['Madl, Michael', 7],
    ['Schedl, W.', 28],
    ['Schedl, Wolfgang', 16],
    ['Taeger, Andreas & París, Mercedes & Nieves-Aldrey, Jose Luis', 2],
    ['Verheyde, Fons & Jacobs, JEffrEY & Dekoninck, WOUTEr', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=101)',
    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);