function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Banks, Nathan', 1],
    ['Bernard, Jared & Lumley, Lisa M. & Buck, Matthias', 2],
    ['Enns, Wilbur R.', 1],
    ['Hagan, Daniel V.', 1],
    ['Higgins, Harold G. & Mulaik, Stanley B.', 1],
    ['McDaniel, B. & Boe, A.', 1],
    ['Mulaik, Stanley B.', 9],
    ['Mulaik, Stanley B. & Allred, Dorald M.', 5],
    ['Nevin, F. Reese', 1],
    ['Porta K, Andrés O. & MichalikK, Peter & Ramírez K, Martín J.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=24)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);