function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 1],
    ['Bariche, Michel & Fricke, Ronald', 1],
    ['Bleeker, Pieter', 2],
    ['Bogorodsky, Sergey V. & Alpermann, Tilman J. & Mal, Ahmad O.', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 1],
    ['Dutt, S. & Thankam, V.', 1],
    ['Ebersole, Jun A. & Cicimurri, David J. & Stringer, Gary L.', 2],
    ['Giovene, G. M.', 1],
    ['Gray, John Edward', 3],
    ['Gupta, M. V.', 2],
    ['Holten, H. S. von', 1],
    ['Klunzinger, C. B.', 1],
    ['Li, C. - S.', 1],
    ['Linnaeus, Carolus', 2],
    ['Wang, K. - L. & Liu, L. - Y. & You, F. & Xu, C.', 2],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=25)',
    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);