function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boulenger, George Albert', 2],
    ['Daget, J.', 1],
    ['Fowler, Henry Weed', 2],
    ['Géry, J.', 1],
    ['Melanie L. J. Stiassny & Victor Mamonekene', 16],
    ['Nichols, J. T. & La Monte, F. R.', 1],
    ['Pellegrin, J.', 1],
    ['Poll, M.', 7],
    ['Poll, M. & Roman, B.', 1],
    ['Stiassny, Melanie L. J. & Mamonekene, Victor', 1],
    ['Trewavas, E.', 1],
    ['Zanata, Angela M. & Vari, Richard P.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=36)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);