function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arzanov, Yu. G. & Martynov, V. V. & Nikulina, T. V.', 13],
    ['Arzanov, Yuriy', 5],
    ['Baviera, Cosimo & Bellò, Cesare & Osella, Giuseppe', 7],
    ['Caldara, Roberto', 5],
    ['Colonnelli, Enzo', 2],
    ['Fancello, Luca & Hernando, Carles & Leo, Piero', 2],
    ['Friedman, A. L. L. & Sagiv, Amir', 3],
    ['Germann, Christoph & Müller, Gerd & Müller, Ursula', 2],
    ['Grebennikov, Vasily V. & Anderson, Robert S.', 2],
    ['Guéorguiev, B.', 4],
    ['Hlaváč, Peter & Nakládal, Oto', 2],
    ['Iorio, Étienne & Zapparoli, Marzio & Ponel, Philippe', 6],
    ['Lewis, JGE', 3],
    ['O\'Brien, Charles W. & Haseeb, Muhammad', 10],
    ['Yunakov, Nikolai & Nazarenko, Vitalij & Filimonov, Rostislav', 5],
    ['Other (24)', 28]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=99)',
    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);