function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bray, Rodney A. & Cribb, Thomas H.', 1],
    ['Bray, Rodney A. & Cribb, Thomas H. & Barker, Stephen C.', 2],
    ['Bray, Rodney A. & Cribb, Thomas H. & Justine, Jean-Lou', 2],
    ['Bray, Rodney A. & Nahhas, Fuad M.', 1],
    ['Hassanine, Reda M. El-S.', 1],
    ['Liu, Sheng-fa', 1],
    ['Mamaev, Y. L.', 1],
    ['Nahhas, Fuad M. & Cable, Raymond M.', 1],
    ['Oshmarin, P. G. & Mamaev, Y. L. & Parukhin, A M', 2],
    ['Parukhin, A M', 1],
    ['Shen, J. - w.', 1],
    ['Shimazu, Takeshi', 2],
    ['Sogandares-Bernal, F. & Hutton, Robert F.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=17)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);