function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahmad, J.', 6],
    ['Anderson, G. R.', 2],
    ['Anderson, G. R. & Cribb, Thomas H.', 6],
    ['Dutta, I. B.', 2],
    ['Fischthal, Jacob H. & Kuntz, Robert E', 2],
    ['Gu, Chang-dong & Shen, J. - w.', 3],
    ['Gupta, V. & Jain, N.', 3],
    ['Madhavi, R.', 2],
    ['Manter, Harold W.', 2],
    ['Nikolaeva, V. M. & Dubina, V. P.', 2],
    ['Sahai, D. & Srivastava, H. D.', 2],
    ['Shen, J. - w.', 4],
    ['Srivastava, H. D. & Sahai, D.', 2],
    ['Wang, P. - q.', 3],
    ['Yamaguti, S.', 11],
    ['Other (23)', 23]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=75)',
    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);