function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['David, K. J. & Hancock, D. L. & Singh, Shakti Kumar & Ramani, S.', 10],
    ['David, K. J. & Ramani, S.', 26],
    ['David, K. J. & Ramani, S. & Whitmore, Daniel & Ranganath, H. R.', 5],
    ['Drew, R. A. I. & Hancock, D. L.', 12],
    ['Drew, R. A. I. & Ma, Jing & Smith, S. & Hughes, J. M.', 17],
    ['Drew, R. A. I. & Romig, M. C. & Dorji, C.', 25],
    ['El-Hawagry, Magdi S.', 4],
    ['Korneyev, S. V. & Hauser, M. & Borkent, C. & Maples, B. K.', 23],
    ['Leblanc, Luc', 79],
    ['Leblanc, Luc & Doorenweerd, Camiel & Jose, Michael San', 4],
    ['Leblanc, Luc & Hossain, M. Aftab & Momen, Mahfuza', 19],
    ['Leblanc, Luc & Tsatsia, Francis & Doorenweerd, Camiel', 6],
    ['Leblanc, Luc & Vueti, Ema Tora & Drew, Richard A. I.', 76],
    ['Namin, Saeed Mohamadzade & Korneyev, Valery A.', 5],
    ['Singh, Maneesh Pal & Sharma, Isha & Hancock, David Lawrence', 5],
    ['Other (17)', 34]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=350)',
    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);