function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Carpenter, Raymond J. & Rozefelds, Andrew C.', 4],
    ['Deans, Bianca J. & Tedone, Laura & Bissember, Alex C.', 6],
    ['Diels, Friedrich Ludwig Emil', 8],
    ['Dils, J. & Özbek, H.', 10],
    ['Foreman, Donald Bruce', 7],
    ['Friis, Else Marie & Crane, Peter R. & Pedersen, Kaj Raunsgaard', 5],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 4],
    ['Hopkins, Helen C. F. & Pillon, Yohan', 6],
    ['Howell, Nathan & Krings, Alexander & Braham, Richard R', 4],
    ['Info Flora', 3],
    ['Jarvis, Charlie', 50],
    ['Linnaeus, Carolus', 16],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 8],
    ['Reveal, James L. & Chase, Mark W. & Iii, - Apg & Iii, Apg', 5],
    ['Sleumer, Hermann Otto', 23],
    ['Other (43)', 57]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=216)',
    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);