function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ascanius, P.', 1],
    ['Bleeker, Pieter', 1],
    ['Boerner, J. C. H.', 1],
    ['Bonnaterre, Joseph Pierre', 1],
    ['Cope, Edward Drinker', 2],
    ['Faber, F.', 1],
    ['Goren, Menachem & Galil, Bella S.', 2],
    ['Hilgendorf, F. M.', 1],
    ['Linnaeus, Carolus', 18],
    ['Love, Milton S. & Bizzarro, Joseph J. & Cornthwaite, Maria', 2],
    ['Mitchill, S. L.', 6],
    ['Risso, A.', 4],
    ['Simian, Gaëlle & Abraham, Daniel & Bailly, Nicolas', 2],
    ['Tilesius, W. G. von', 2],
    ['Walbaum, J. J.', 8],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=57)',
    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);