function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bunwong, Sukhonthip & Chantaranothai, Pranom', 73],
    ['Cabezudo, Baltasar & Solanas, Federico Casimiro-Soriguer', 156],
    ['Gonçalves, Ana Carla & Ouhammoud, Ahmed & Amirouche, Rachid', 50],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 498],
    ['Info Flora', 543],
    ['Jarvis, Charlie', 1140],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 388],
    ['Lee, Jong-Won & Yun, Ho-Geun & Hwang, Tae Young & Kim, Kyungmin', 97],
    ['Reich, Dieter & Gutermann, Walter & Bardy, Katharina', 166],
    ['Robinson, Harold & Skvarla, John J. & Funk, Vicki A.', 71],
    ['Saldivia, Patricio', 48],
    ['Thornhill, Robert & Krings, Alexander & Lindbo, David', 136],
    ['Vogt, Robert & Gottschlich, Günter', 183],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 168],
    ['Štěpánek, Jan & Kirschner, Jan', 100],
    ['Other (448)', 1842]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=5659)',
    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);