function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Almeida, Thais Elias & Salino, Alexandre', 2],
    ['Blume, Carl Ludwig von', 8],
    ['Brause, Guido Georg Wilhelm', 20],
    ['Cabezudo, Baltasar & Solanas, Federico Casimiro-Soriguer', 2],
    ['Christ, Konrad Hermann Heinrich', 4],
    ['Christensen, Carl C.', 11],
    ['Cremers, Georges & Aupic, Cécile', 11],
    ['Cremers, Georges & Boudrie, Michel', 2],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 4],
    ['Info Flora', 4],
    ['Jarvis, Charlie', 17],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 3],
    ['Mazumdar, Jaideep & Callmander, Martin W. & Fumeaux, Nicolas', 13],
    ['Rosenstock, Eduard', 10],
    ['Wijnands, Dirk Onno & Heniger, Johannes & Veldkamp, Jan Frederik', 3],
    ['Other (11)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=126)',
    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);