function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Baillon, Henri Ernest', 18],
    ['Becherer', 54],
    ['Cabezudo, Baltasar & Solanas, Federico Casimiro-Soriguer', 56],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 166],
    ['Info Flora', 161],
    ['Jarvis, Charlie', 258],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 113],
    ['Lauterbach, Carl (Karl) Adolf Georg', 30],
    ['Lee, Jong-Won & Yun, Ho-Geun & Hwang, Tae Young & Kim, Kyungmin', 30],
    ['Linnaeus, Carolus', 187],
    ['Lowry Ii, Porter P. & Plunkett, Gregory M. & Gostel, Morgan R.', 33],
    ['Philipson, William Raymond', 21],
    ['Reich, Dieter & Gutermann, Walter & Bardy, Katharina', 57],
    ['Thornhill, Robert & Krings, Alexander & Lindbo, David', 22],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 38],
    ['Other (156)', 349]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=1593)',
    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);