function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Airy Shaw, Herbert Kenneth', 83],
    ['Berry, Paul E. & Kainulainen, Kent & Ee, Benjamin W. van', 154],
    ['Cardiel, José María & Muñoz-Rodríguez, Pablo', 100],
    ['Haevermans, Thomas & Rouhan, Germinal & Hetterscheid, Wilbert', 124],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 36],
    ['Info Flora', 38],
    ['Jarvis, Charlie', 143],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 29],
    ['Linnaeus, Carolus', 60],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 40],
    ['Munoz, Iris Montero & Cardiel, Jose Maria & Levin, Geoffrey A.', 35],
    ['Muñoz, Iris Montero & Levin, Geoffrey A. & Cardiel, José María', 57],
    ['Muñoz-Rodríguez, Pablo & Cardiel, José María & Atha, Daniel', 29],
    ['Pereira, Amanda Da Paixão Noronha & Riina, Ricarda', 42],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 26],
    ['Other (158)', 584]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=1580)',
    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);