function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Becherer', 65],
    ['Fritsch, Peter W. & Armstrong, Kate E. & Aung, Mu Mu', 48],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 113],
    ['Info Flora', 116],
    ['Jarvis, Charlie', 262],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 84],
    ['Linnaeus, Carolus', 149],
    ['Meeprom, Nattanon & Utteridge, Timothy & Culham, Alastair', 48],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 190],
    ['Schatz, George E. & Lowry Ii, Porter P.', 58],
    ['Schmid, Maurice', 149],
    ['Sleumer, Hermann Otto', 203],
    ['Thornhill, Robert & Krings, Alexander & Lindbo, David', 58],
    ['White, Kristine N.', 102],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 34],
    ['Other (304)', 1045]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=2724)',
    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);