function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anistratenko, V. V. & Furyk, Yu. I. & Anistratenko, O. Yu.', 2],
    ['Appleton, C. C. & Miranda, N. A. F.', 2],
    ['Frank, Christa', 4],
    ['Gloeer, Peter & Pesic, Vladimir', 4],
    ['Harzhauser, Mathias & Neubauer, Thomas A. & Gross, Martin', 1],
    ['Harzhauser, Mathias & Neubauer, Thomas A. & Mandic, Oleg', 1],
    ['Marinskiy, Vadim V.', 6],
    ['Marković, Vanja & Gojšina, Vukašin & Novaković, Boris', 3],
    ['Neubauer, Thomas A. & Harzhauser, Mathias & Kroh, Andreas', 4],
    ['Neubauer, Thomas A. & Kroh, Andreas & Harzhauser, Mathias', 1],
    ['Salvador, Rodrigo B.', 1],
    ['Shu, Fengyue & Köhler, Frank & Fu, Cuichang & Wang, Hongzhu', 1],
    ['Sitnikova, Tatiana & Peretolchina, Tatiana', 1],
    ['Wesselingh, Frank & Poorten, Jan Johan ter & Kijashko, Pavel', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=34)',
    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);