function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barlow, Bryan Alwyn', 6],
    ['Cabezudo, Baltasar & Solanas, Federico Casimiro-Soriguer', 4],
    ['Danser, Benedictus Hubertus', 10],
    ['Ghahari, Hassan & Moulet, Pierre & Rider, David A.', 5],
    ['Info Flora', 14],
    ['Jarvis, Charlie', 33],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 10],
    ['Linnaeus, Carolus', 8],
    ['Linnavuori, Rauno E.', 6],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 10],
    ['Nacoulma, Blandine M. I. & Schmidt, Marco & Hahn, Karen', 5],
    ['Reveal, James L. & Chase, Mark W. & Iii, - Apg & Iii, Apg', 8],
    ['Rogers, Zachary S. & Malécot, Valéry & Sikes, Kendra G.', 16],
    ['Zhigila, D. A. & Verboom, G. A. & Stirton, C. H. & Muasya, A. M.', 9],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 23],
    ['Other (48)', 73]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=240)',
    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);