function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bauters, Kenneth & Larridon, Isabel & Reynders, Marc', 35],
    ['Becherer', 3],
    ['Don, Bel Lar Ri & Ers, Enne Th Ba Ut & Reynde, Ma Rc', 47],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 9],
    ['Howell, Nathan & Krings, Alexander & Braham, Richard R', 6],
    ['Info Flora', 12],
    ['Jarvis, Charlie', 26],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 10],
    ['Lee, Jong-Won & Yun, Ho-Geun & Hwang, Tae Young & Kim, Kyungmin', 4],
    ['Linnaeus, Carolus', 15],
    ['Monteiro, Francisca & Costa, Esperança Da & Kissanga, Raquel', 8],
    ['Nacoulma, Blandine M. I. & Schmidt, Marco & Hahn, Karen', 10],
    ['Oliveira, Adriana & Bove, Claudia', 18],
    ['Silva, Caio Lima Braga da & Nunes, Clebiana de Sá', 8],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 26],
    ['Other (22)', 30]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=267)',
    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);