function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['- & Grosser, Clemens', 4],
    ['Ahmed, Raja Ben & Bielecki, Aleksander & Cichocka, Joanna M.', 5],
    ['Ahmed, Raja Ben & Romdhane, Yasmina & Tekaya, Saïda', 7],
    ['Baturina, Maria A. & Kaygorodova, Irina A. & Loskutova, Olga A.', 6],
    ['Darabi-Darestani, Kaveh & Sari, Alireza & Sarafrazi, Alimorad', 15],
    ['Grosser, Clemens & Pešić, Vladimir & Gligorović, Bogić', 14],
    ['Hechtel, Fred O. P. & Sawyer, Roy T.', 4],
    ['Linnaeus, Carolus', 10],
    ['Madill, Jacqueline & Hovingh, Peter', 8],
    ['Moore, John Percy', 8],
    ['Nakano, Takafumi', 28],
    ['Oka, Asajiro', 6],
    ['Richardson, Laurence R.', 20],
    ['Schenková, Jana & Sychra, Jan & Košel, Vladimír & Kubová, Nela', 9],
    ['Tessler, Michael & Siddall, Mark E.', 4],
    ['Other (58)', 96]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=244)',
    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);