function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bray, Rodney A. & Cribb, Thomas H. & Barker, Stephen C.', 1],
    ['Edwards, Stephen R. & Nahhas, Fuad M.', 1],
    ['Fischthal, Jacob H. & Thomas, J. D.', 1],
    ['Gupta, N. K. & Sayal, A.', 1],
    ['Gupta, P. C. & Gupta, V. C.', 2],
    ['Hanson, Mary Louise', 1],
    ['Kruse, Günther O. W.', 1],
    ['Linton, E.', 2],
    ['Machida, Masaaki', 2],
    ['Manter, Harold W.', 3],
    ['Nahhas, Fuad M. & Cable, Raymond M.', 2],
    ['Pearse, A. S.', 2],
    ['Shen, J. - w.', 2],
    ['Sogandares-Bernal, F. & Hutton, Robert F.', 3],
    ['Wang, P. - q.', 2],
    ['Other (9)', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=35)',
    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);