function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Becherer', 204],
    ['Brullo, Salvatore & Brullo, Cristian & Cambria, Salvatore', 8],
    ['Cabezudo, Baltasar & Solanas, Federico Casimiro-Soriguer', 14],
    ['Csosz, Sandor & Seifert, Bernhard & Laszlo, Mark', 8],
    ['Gardère, Mathieu L. & Florence, Jacques & Muller, Serge', 10],
    ['González, Favio', 58],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 61],
    ['Info Flora', 70],
    ['Jarvis, Charlie', 86],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 40],
    ['Lee, Jong-Won & Yun, Ho-Geun & Hwang, Tae Young & Kim, Kyungmin', 8],
    ['Linnaeus, Carolus', 43],
    ['Reich, Dieter & Gutermann, Walter & Bardy, Katharina', 22],
    ['Rollim, Isis De Mello & Coelho, Guilherme Peres', 12],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 18],
    ['Other (51)', 92]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=754)',
    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);