function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amato, J. F. R', 1],
    ['Bravo-Hollis, Margarita & Brenes-Madrigal, Rodrigo R.', 1],
    ['Bray, Rodney A. & Cribb, Thomas H. & Justine, Jean-Lou', 5],
    ['Kurochkin, Y. V. & Korotaeva, V. D.', 1],
    ['Machida, Masaaki', 1],
    ['Madhavi, R.', 1],
    ['Mamaev, Y. L.', 1],
    ['Manter, Harold W.', 3],
    ['Sparks, Albert K.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);