function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Breteler, F. J.', 5],
    ['Cabezudo, Baltasar & Solanas, Federico Casimiro-Soriguer', 4],
    ['DeFilipps, Robert A. & Krupnick, Gary A.', 7],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 6],
    ['Info Flora', 5],
    ['Jarvis, Charlie', 37],
    ['Lauterbach, Carl (Karl) Adolf Georg', 12],
    ['Linnaeus, Carolus', 21],
    ['Merrill, Elmer Drew & Perry, Lily May', 7],
    ['Mitchell, John D. & Daly, Douglas C.', 12],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 14],
    ['Monteiro, Francisca & Costa, Esperança Da & Kissanga, Raquel', 5],
    ['Nacoulma, Blandine M. I. & Schmidt, Marco & Hahn, Karen', 10],
    ['Randrianasolo, Armand & Lowry II, Porter P. & Schatz, George E.', 34],
    ['Randrianasolo, Armand & Lowry Ii, Porter P.', 9],
    ['Other (43)', 67]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=255)',
    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);