function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['C. O & Madl, M. & Olmi, M.', 18],
    ['Coelho, Beatriz W. & Aguiar, Alexandre P. & Engel, Michael S.', 6],
    ['Derafshan, Hossein Ali & Olmi, Massimo', 4],
    ['Derafshan, Hossein Ali & Rakhshani, Ehsan & Olmi, Massimo', 3],
    ['Else, George R. & Bolton, Barry & Broad, Gavin R.', 6],
    ['Guglielmino, Adalgisa & Olmi, Massimo', 7],
    ['Mita, Toshiharu', 10],
    ['Olmi, Massimo & Copeland, Robert S. & Guglielmino, Adalgisa', 12],
    ['Olmi, Massimo & Copeland, Robert S. & Noort, Simon Van', 64],
    ['Olmi, Massimo & Guglielmino, Adalgisa', 15],
    ['Olmi, Massimo & Guglielmino, Adalgisa & Vollaro, Massimo', 5],
    ['Olmi, Massimo & van Noort, Simon & Guglielmino, Adalgisa', 8],
    ['Schüepp, Christof & Olmi, Massimo', 7],
    ['Xu, Zaifu & Olmi, Massimo & Guglielmino, Adalgisa & Chen, Huayan', 19],
    ['Xu, Zaifu & Olmi, Massimo & He, Junhua', 49],
    ['Other (10)', 16]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=249)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);