function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abraham, K. J. & Joshi, K. K. & Murty, V. S. R.', 2],
    ['Berlese, Antonio', 1],
    ['Chakrabarty, Prosanta & Sparks, John S.', 2],
    ['Evermann, Barton Warren & Seale, A.', 1],
    ['Fowler, Henry Weed', 2],
    ['Golani, Daniel & Bogorodsky, Sergey V.', 2],
    ['Kimura, Seishi & Ito, Takahiro & Perostowady, T. & Iwatsuki, Y.', 1],
    ['Miki, Ryohei & Murase, Atsunobu & Wada, Masaaki', 2],
    ['Munro, I. S. R.', 1],
    ['Nurettin Meriç & Lütfiye Eryilmaz & Müfit Özulug', 1],
    ['Ogilby, J. D.', 2],
    ['Seale, A.', 1],
    ['Whitley, Gilbert P.', 1],
    ['Yennawar, Prasanna & Mohapatra, Anil & Tudu, Prasad Chandra', 1],
    ['Zainal Abidin, Danial Hariz & Lavoué, Sébastien', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=22)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);