function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bray, Rodney A. & Cribb, Thomas H.', 2],
    ['Fischthal, Jacob H. & Thomas, J. D.', 1],
    ['Hussain, Syed Altaf & Hanumantha Rao, K. & Shyamasundari, K.', 1],
    ['Layman, E. M.', 1],
    ['Madhavi, R.', 1],
    ['Manter, Harold W.', 4],
    ['Nagaty, H. F.', 3],
    ['Nahhas, Fuad M. & Cable, Raymond M.', 1],
    ['Saoud, M. F. A & Ramadan, M. M.', 1],
    ['Shen, J. - w.', 1],
    ['Sogandares-Bernal, F.', 1],
    ['Yamaguti, S.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=18)',
    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);