function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aistleitner, E.', 3],
    ['An, Xuan & Da, Wa & Wang, Min & Wang, Houshuai', 1],
    ['Aurivillius, Per Olof Christopher', 7],
    ['Bolotov, Ivan N. & Kondakov, Alexander V. & Spitsyn, Vitaly', 1],
    ['Delabye, Sylvain & Maicher, Vincent & Safian, Szabolcs', 6],
    ['Kemal, Muhabbet & Koçak, Ahmet Ömer', 2],
    ['Komal, J. & Shashank, P. R. & Sondhi, Sanjay & Madan, Sohail', 15],
    ['László, Gyula M.', 3],
    ['Pang, Xing-Yan & Rindoš, Michal & Kishida, Yasunori', 5],
    ['Patočka, J. & Turčáni, M.', 14],
    ['Rindos, Michal & Schintlmeister, Alexander', 7],
    ['Walker, Francis', 21],
    ['Wang, Houshuai & Wang, Min & Fan, Xiaoling', 13],
    ['Wymann, Hans-Peter', 2],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 2],
    ['Other (15)', 15]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=117)',
    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);