function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boulenger, George Albert', 3],
    ['David, L. & Poll, M.', 1],
    ['Fowler, Henry Weed', 1],
    ['John P. Sullivan & Carl D. Hopkins', 1],
    ['Kramer, Bernd & Bills, Roger & Skelton, Paul & Wink, Michael', 25],
    ['Kramer, Bernd & van der Bank, F. H.', 1],
    ['Lavoue, Sebastien & Sullivan, John P.', 2],
    ['Lavoué, Sébastien', 5],
    ['Lavoué, Sébastien & Hopkins, Carl D. & Toham, André Kamdem', 4],
    ['Lavoué, Sébastien & Sullivan, John P. & Arnegard, M. E.', 1],
    ['Lavoué, Sébastien & Sullivan, John P. & Arnegard, Matthew E.', 12],
    ['Marcusen, J.', 1],
    ['Poll, M.', 2],
    ['Rochebrune, A. T. de', 1],
    ['Sauvage, H. E.', 4],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=66)',
    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);