function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Beverley-Burton, Mary', 1],
    ['Caballero y C., Eduardo', 1],
    ['Campião, Karla Magalhães & Morais, Drausio Honorio', 1],
    ['Capron, A. & Deblock, S. & Brygoo, E. R.', 1],
    ['Chakrabarti, Shuvajit', 1],
    ['Dollfus, R. P.', 1],
    ['Fischthal, Jacob H. & Thomas, J. D.', 1],
    ['Gupta, N. K. & Chopra, R.', 1],
    ['Gupta, S. P. & Agrawal, V.', 1],
    ['Ingles, Lloyd G.', 1],
    ['Issaitschikow, I. M. & Zakharov, Nikolai Pavlovich', 1],
    ['Klein, Walter', 2],
    ['Paredes-León, Ricardo & García-Prieto, Luis', 2],
    ['Srivastava, H. D.', 3],
    ['Yamaguti, S.', 3],
    ['Other (13)', 13]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=34)',
    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);