function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['AL-Shehbaz, Ihsan A. & Barriera, Gabrielle', 594],
    ['Becherer', 1608],
    ['Cabezudo, Baltasar & Solanas, Federico Casimiro-Soriguer', 1066],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 3135],
    ['Info Flora', 3588],
    ['Jarvis, Charlie', 7209],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 2545],
    ['Linnaeus, Carolus', 2488],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 1794],
    ['Nacoulma, Blandine M. I. & Schmidt, Marco & Hahn, Karen', 489],
    ['Paton, Alan J. & Mwanyambo, Montfort & Govaerts, Rafael H. A.', 442],
    ['Reich, Dieter & Gutermann, Walter & Bardy, Katharina', 810],
    ['Thornhill, Robert & Krings, Alexander & Lindbo, David', 586],
    ['Wood, John R. I. & Munoz-Rodriguez, Pablo', 454],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 1087],
    ['Other (4253)', 30287]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=58182)',
    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);