function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bleeker, Pieter', 5],
    ['Bloch, Marcus Elieser', 2],
    ['Bloch, Marcus Elieser & Schneider, J. G.', 1],
    ['Bonnaterre, Joseph Pierre', 1],
    ['Cadenat, J.', 1],
    ['Curtiss, A.', 1],
    ['Day, F.', 1],
    ['Delaroche, François-Étienne', 1],
    ['Eschmeyer, William N. Dr.', 6],
    ['Eschmeyer, William N. Dr. & Allen, Gerald R. Dr.', 2],
    ['Goode, G. B. & Bean, T. H.', 3],
    ['Hildebrand, S. F.', 2],
    ['Playfair, R. L. & Günther, Albert Charles Lewis Gotthilf', 2],
    ['Risso, A.', 2],
    ['Sauvage, H. E.', 2],
    ['Other (36)', 36]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=68)',
    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);