function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['A, Socorro Ávila & Flowers, R. Wills', 2],
    ['Dinakaran, S. & Balachandran, C. & Anbalagan, S.', 1],
    ['Eaton, Alfred Edwin', 1],
    ['Kluge, Nikita & Srinivasan, Pandiarajan & Isack, Rajasekaran', 1],
    ['Kluge, Nikita J.', 5],
    ['Muthukatturaja, Marimuthu & Balasubramanian, Chellaiah', 2],
    ['Peters, J. G. & Flowers, R. W. & Hubbard, M. D. & Domínguez, E.', 1],
    ['Sartori, Michel & Bauernfeind, Ernst', 1],
    ['Selvakumar, C. & Janarthanan, S. & Sivaramakrishnan, K. G.', 2],
    ['Selvakumar, C. & Subramanian, K. A. & Chandra, Kailash', 4],
    ['Vasanth, M. & Subramanian, K. A. & Selvakumar, C.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=22)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);