function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bariche, Michel & Fricke, Ronald', 1],
    ['Bleeker, Pieter', 1],
    ['Bonaparte, Charles Lucien', 1],
    ['Bonnaterre, Joseph Pierre', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 1],
    ['Gilchrist, J. D. F. & Thompson, W. Wardlaw', 1],
    ['Goren, Menachem & Galil, Bella S.', 1],
    ['Günther, Albert Charles Lewis Gotthilf', 3],
    ['Hornstedter, C. F.', 1],
    ['Houttuyn, M.', 1],
    ['Jordan, David Starr & Thompson, W. F.', 1],
    ['Linnaeus, Carolus', 10],
    ['Mitchill, S. L.', 2],
    ['Rafinesque, Constantine Samuel', 2],
    ['Richardson, John', 2],
    ['Other (10)', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=39)',
    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);