function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahl, E.', 1],
    ['Cope, Edward Drinker', 1],
    ['Durbin, M. L.', 6],
    ['Eigenmann, C. H.', 3],
    ['Eigenmann, C. H. & Kennedy, C. H.', 2],
    ['Eigenmann, C. H. & Myers, G. S.', 1],
    ['Eigenmann, C. H. & Ogle, F.', 3],
    ['Ellis, M. D.', 1],
    ['Fernández-Yépez, A.', 1],
    ['Fowler, Henry Weed', 1],
    ['Gill, T. N.', 3],
    ['Géry, J.', 3],
    ['Lima, Flávio C. t. & Correa, Vanessa & Ota, Rafaela P.', 1],
    ['Meek, S. E.', 1],
    ['Schultz, Leonard P. & Axelrod, H. R.', 1],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=30)',
    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);