function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chaowasku, T & Johnson, DM & van der Ham, RWJM & Chatrou, LW', 28],
    ['Couvreur, Thomas L. P. & Dagallier, Leo-Paul M. J.', 198],
    ['Dagallier, Leo-Paul M. J. & Mbago, Frank M. & Couderc, Marie', 51],
    ['Diels, Friedrich Ludwig Emil', 15],
    ['Harzhauser, Mathias & Landau, Bernard M.', 12],
    ['Hoekstra, Paul H. & Wieringa, Jan J. & Chatrou, Lars W.', 10],
    ['Jarvis, Charlie', 12],
    ['Johnson, David M. & Murray, Nancy A.', 88],
    ['Linnaeus, Carolus', 9],
    ['Maas, Paul J. M. & Westra, Lubbert Y. Th. & Chatrou, Lars W.', 13],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 75],
    ['Pirie, Michael D. & Chatrou, Lars W. & Maas, Paul J. M.', 35],
    ['Turner, Ian M. & Utteridge, Timothy M. A.', 105],
    ['Vilela, Lucas & Lopes, Jenifer De Carvalho', 13],
    ['Xue, Bine & Chen, Yanwen & Saunders, Richard M. K.', 9],
    ['Other (80)', 197]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=870)',
    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);