function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['A. W', 5],
    ['ENGEL, MICHAEL S.', 4],
    ['Eardley, Connal & Urban, Rosalind', 12],
    ['Else, George R. & Bolton, Barry & Broad, Gavin R.', 12],
    ['Kuhlmann, Michael', 11],
    ['Kuhlmann, Michael & Jürgensen, Lea-Sophie & Michez, Denis', 5],
    ['Lhomme, Patrick', 14],
    ['Michez, Denis & Kuhlmann, Michael & Ivanov, Sergey P.', 4],
    ['Michez, Denis & Nel, Andre & Menier, Jean-Jacques', 6],
    ['Michez, Denis & Patiny, Sébastien', 12],
    ['Portman, Zachary M. & Gardner, Joel & Lane, Ian G.', 5],
    ['Proshchalykin, M. Yu. & Astafurova, Yu. V. & Levchenko, T. V.', 8],
    ['Radchenko, Vladimir G. & Ghisbain, Guillaume & Michez, Denis', 5],
    ['Risch, Stephan & Roberts, Stuart P. M. & Smit, Jan', 9],
    ['Zettel, Herbert & Ockermüller, Esther & Schoder, Sabine', 6],
    ['Other (13)', 21]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=139)',
    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);