function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abdel-Dayem, Mahmoud S. & Elgharbawy, Ali A. & Rasool, Iftekhar', 1],
    ['Arlington', 1],
    ['Aston, Paul', 1],
    ['Auvel', 2],
    ['Azadbakhsh, Saeed & Nozari, Jamasb', 1],
    ['Guéorguiev, B.', 1],
    ['Hoess, René', 1],
    ['Hoess, René & Chittaro, Yannick & Walter, Thomas', 1],
    ['Hristovski, Slavčo & Guéorguiev, Borislav', 3],
    ['Jaeger, Bernd', 14],
    ['Jaeger, Bernd & M, Boris & W, David', 7],
    ['Kostova, Rumyana & Gueorguiev, Borislav', 6],
    ['Putchkov, A. V. & Nitochko, M. I.', 3],
    ['Wrase, DW', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=45)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);