function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cockerell, Theodore D. A.', 5],
    ['Costa, Oronzio Gabriele', 2],
    ['Ehrhorn, E. M.', 2],
    ['Franco, José Carlos & Russo, Agatino & Marotta, Salvatore', 1],
    ['Hodgson, Chris', 2],
    ['Kuwana, Shinkai Inokichi', 3],
    ['Maskell, William Miles', 8],
    ['Mille, Christian & Henderson, Rosa C. & Cazères, Sylvie', 2],
    ['Moghaddam, Masumeh', 1],
    ['Newstead, R.', 1],
    ['Perez-Gelabert, Daniel E.', 1],
    ['Signoret, V. A. Le Dr.', 1],
    ['Targioni-Tozzetti, A.', 1],
    ['Van, Alex R. & May, Bernie', 2],
    ['Williams, Douglas J. & Ben-Dov, Yair', 12],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=48)',
    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);