function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alleyne, H. G. & Macleay, William John', 3],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 4],
    ['Bath, Hans', 3],
    ['Bleeker, Pieter', 18],
    ['Day, F.', 4],
    ['De Vis, Charles Walter', 6],
    ['Fowler, Henry Weed', 5],
    ['Herre, Albert W. C. T.', 5],
    ['Jenkins, O. P.', 2],
    ['Jordan, David Starr & Seale, A.', 2],
    ['Klunzinger, C. B.', 3],
    ['Murray, J. A.', 2],
    ['Philippi, R. A.', 2],
    ['Regan, C. T.', 3],
    ['Whitley, Gilbert P.', 4],
    ['Other (27)', 29]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=95)',
    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);