function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aistleitner, Eyjolf & Behounek, Gottfried & Hoppe, Henri', 2],
    ['An, Jeong-Seop & Choi, Sei-Woong & Ronkay, László', 1],
    ['Borges, Paulo A. V. & Gaspar, Clara', 2],
    ['Joos, R Enato & Fritsch, Dieter & Bryner, Rudolf', 1],
    ['Komal, J. & Shashank, P. R. & Sondhi, Sanjay & Madan, Sohail', 1],
    ['Mbata, Keith J. & Prins, Jurate De', 8],
    ['Pogue, Michael G.', 1],
    ['Rezbanyai-Reser, Ladislaus', 1],
    ['Varga, Zoltan & Ronkay, Gabor & Ronkay, Laszlo', 1],
    ['Weidlich, Michael', 3],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=23)',
    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);