function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Baillon, Henri Ernest', 3],
    ['Couvreur, Thomas L. P. & Dagallier, Leo-Paul M. J.', 23],
    ['Diels, Friedrich Ludwig Emil', 2],
    ['Jarvis, Charlie', 2],
    ['Johnson, David M. & Munzinger, Jérôme & Peterson, Julie A.', 6],
    ['Johnson, David M. & Murray, Nancy A.', 88],
    ['Maas, Paul J. M. & Westra, Lubbert Y. Th. & Chatrou, Lars W.', 1],
    ['Mello-Silva, Renato & Lopes, Jenifer De Carvalho', 1],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 12],
    ['Nacoulma, Blandine M. I. & Schmidt, Marco & Hahn, Karen', 1],
    ['Pontes-Pires, Aline Fernandes & Murray, Nancy A.', 1],
    ['Turner, Ian M. & Utteridge, Timothy M. A.', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=150)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);