function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boustani, Mira & Rasmont, Pierre & Dathe, Holger H.', 19],
    ['Dufrêne, E. & Schwarz & Smit, J.', 16],
    ['E, Russia.', 48],
    ['Else, George R. & Bolton, Barry & Broad, Gavin R.', 56],
    ['Gibbs, Jason & Ascher, John S. & Rightmyer, Molly G.', 45],
    ['Kuhlmann, Michael', 18],
    ['Lhomme, Patrick', 71],
    ['Lim, Kayun & Lee, Seunghwan', 34],
    ['Noel, Gregoire & Bonnet, Julie & Everaerts, Sylvain', 17],
    ['Portman, Zachary M. & Gardner, Joel & Lane, Ian G.', 38],
    ['Proshchalykin, M. Yu. & Astafurova, Yu. V. & Levchenko, T. V.', 27],
    ['Risch, Stephan & Roberts, Stuart P. M. & Smit, Jan', 60],
    ['S, Maximilian & S, Jan & G, Fritz', 18],
    ['Schwarz, Maximilian & Gusenleitner, Fritz', 35],
    ['Zettel, Herbert & Ockermüller, Esther & Schoder, Sabine', 28],
    ['Other (24)', 113]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=643)',
    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);