function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anistratenko, V. V. & Furyk, Yu. I. & Anistratenko, O. Yu.', 4],
    ['Cowie, Robert H.', 1],
    ['Esu, Daniela & Girotti, Odoardo', 3],
    ['Falniowski, Andrzej & Lewarne, Brian & Rysiewska, Aleksandra', 1],
    ['Fasulo, Giuseppe & Duraccio, Sergio & Federico, Antonio', 1],
    ['Frank, Christa', 3],
    ['Gloeer, Peter & Pesic, Vladimir', 3],
    ['Marinskiy, Vadim V.', 6],
    ['Marković, Vanja & Gojšina, Vukašin & Novaković, Boris', 4],
    ['Moore, Charles', 2],
    ['Müller, Otto Friedrich', 1],
    ['Neubauer, Thomas A. & Harzhauser, Mathias & Kroh, Andreas', 2],
    ['Neubauer, Thomas A. & Wesselingh, Frank P.', 5],
    ['Odabaşi, Deniz Anil & Glöer, Peter & Yildirim, M. Zeki', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=39)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);