function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Baker, Edmund Gilbert', 1],
    ['Barriera, Gabrielle', 35],
    ['Becherer', 5],
    ['Blume, Carl Ludwig von', 2],
    ['Cabezudo, Baltasar & Solanas, Federico Casimiro-Soriguer', 1],
    ['Doweld, Alexander B.', 5],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 2],
    ['Howell, Nathan & Krings, Alexander & Braham, Richard R', 4],
    ['Jarvis, Charlie', 8],
    ['Lin, Yun & Bi, Hai-Yan & Sun, Jun & Sun, Qian', 4],
    ['Linnaeus, Carolus', 5],
    ['Merrill, Elmer Drew & Perry, Lily May', 5],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 7],
    ['Suh, Soo-Jung', 3],
    ['Thornhill, Robert & Krings, Alexander & Lindbo, David', 8],
    ['Other (9)', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=104)',
    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);