function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boulenger, George Albert', 1],
    ['Carl J. Ferraris, Jr.', 5],
    ['Day, F.', 1],
    ['Ferraris, Carl J. & Jr', 1],
    ['Ferraris, Carl J. & Vari, Richard P.', 2],
    ['Ferrer, Julio', 1],
    ['Fowler, Henry Weed', 2],
    ['Gras, R.', 1],
    ['Guimarães, A. R. P.', 1],
    ['Huang, S. - Y.', 1],
    ['Jerdon, T. C.', 1],
    ['Li, Xu & Zhou, Wei', 3],
    ['Mélanie Turiault', 2],
    ['Ng, H. H. Tan H. H.', 2],
    ['Trewavas, E.', 2],
    ['Other (10)', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=36)',
    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);