function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Abu El-Ghiet, Usama M. & Edmardash, Yusuf A.', 1],
    ['Ghramh, Hamed Ali', 2],
    ['Gupta, Ankita & Soujanya, P. Lakshmi & Achterberg, Cornelis Van', 1],
    ['Madl, M. & Achterberg, C. Van', 5],
    ['N. S & Ghahari, H. & F, Bassus & E, Camptothlipsis', 1],
    ['Sarmiento, Carlos E. & M & Sharkey, Michael', 4],
    ['Sharkey, Michael & Yu, Dicky & van Noort, Simon', 1],
    ['Sharkey, Michael J. & Clutts, Stephanie A.', 3],
    ['Stevens, Nicholas B. & Austin, Andrew D. & Jennings, John T.', 1],
    ['van Achterberg, Cornelis & Long, Khuat Dang', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=21)',
    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);