function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arzanov, Yu. G. & Martynov, V. V. & Nikulina, T. V.', 13],
    ['Baviera, Cosimo & Magnano, Luigi', 14],
    ['Białooki, Piotr Z.', 6],
    ['Borges, Paulo A. V. & Gaspar, Clara', 4],
    ['Christoph Germann', 5],
    ['Davidian, Genrikh & Gültekin, Levent', 3],
    ['Davidian, Genrikh & Savitsky, Vladimir', 3],
    ['Germann, Christoph', 12],
    ['Germann, Christoph & Müller, Gerd & Müller, Ursula', 4],
    ['Ghahari, H. & A. A & Y. G', 5],
    ['Gosik, Rafał & Sprick, Peter', 3],
    ['Hlaváč, Peter & Skuhrovec, Jiří', 4],
    ['Kuschel, Guillermo', 3],
    ['Rafał Gosik & Peter Sprick & Jiří Skuhrovec & Magdalena Deruś', 15],
    ['Yunakov, Nikolai & Nazarenko, Vitalij & Filimonov, Rostislav', 96],
    ['Other (20)', 26]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=216)',
    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);