function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Becherer', 96],
    ['Cabezudo, Baltasar & Solanas, Federico Casimiro-Soriguer', 24],
    ['DuPasquier, Pierre-Emmanuel & Andro-Durand, Veronique', 63],
    ['Fei, Wen-Qun & Yuan, Qiong & Yang, Qin-Er', 7],
    ['Grabovskaya-Borodina, Alisa E. & Illarionova, Irina D.', 7],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 145],
    ['Info Flora', 143],
    ['Jarvis, Charlie', 153],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 117],
    ['Lee, Jong-Won & Yun, Ho-Geun & Hwang, Tae Young & Kim, Kyungmin', 39],
    ['Linnaeus, Carolus', 129],
    ['Novikov, Andriy', 10],
    ['Reich, Dieter & Gutermann, Walter & Bardy, Katharina', 26],
    ['Zeng, You-Pai & Yuan, Qiong & Yang, Qin-Er', 24],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 12],
    ['Other (76)', 135]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=1130)',
    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);