function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Badham, Charles', 1],
    ['Baturina, Maria A. & Kaygorodova, Irina A. & Loskutova, Olga A.', 3],
    ['Bielecki, Aleksander & Cichocka, Joanna M. & Świątek, Piotr', 1],
    ['Bielecki, Aleksander & Cios, Stanisław & Cichocka, Joanna M.', 1],
    ['Burreson, Eugene M.', 5],
    ['Burreson, Eugene M. & Kalman, Julianne E.', 1],
    ['Darabi-Darestani, Kaveh & Sari, Alireza & Sarafrazi, Alimorad', 2],
    ['Jueg, Uwe & Zettler, Michael L.', 5],
    ['Kaygorodova, Irina A.', 5],
    ['Meyer, Marvin C. & Burreson, Eugene M.', 2],
    ['Oka, Asajiro', 6],
    ['Richardson, Laurence R.', 2],
    ['Schenková, Jana & Sychra, Jan & Košel, Vladimír & Kubová, Nela', 5],
    ['Utevsky, A. Yu.', 2],
    ['Utevsky, Serge Y.', 2],
    ['Other (21)', 21]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=64)',
    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);