function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alekseev, Vitalii I. & Drotikova, Anna M. & Rozhina, Viktoria I.', 2],
    ['Anderson, Robert S.', 4],
    ['Arzanov, Yu. G. & Martynov, V. V. & Nikulina, T. V.', 8],
    ['Christoph Germann & Sofia Wyler & Marco Valerio Bernasconi', 1],
    ['Clark, Wayne E. & Burke, Horace R.', 5],
    ['Douglas, Hume & Bouchard, Patrice & Anderson, Robert S.', 3],
    ['Germann, Christoph & Herger, Peter', 1],
    ['Gosik, Rafał & Sasa, Archbold & Witkowski, Ed. T. F.', 1],
    ['Kojima, Hiroaki Dr.', 2],
    ['Košťál, Michael', 5],
    ['Posadas, Paula', 4],
    ['Webster, Reginald P. & Anderson, Robert S. & Sweeney, Jon D.', 2],
    ['Webster, Reginald P. & Anderson, Robert S. & Webster, Vincent L.', 2],
    ['Yunakov, Nikolai & Nazarenko, Vitalij & Filimonov, Rostislav', 16],
    ['Zabulev, Ilya A.', 9],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=67)',
    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);