function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Agrawal, Vinod', 1],
    ['Aken’Ova, T. O. & Cribb, Thomas H. & Bray, Rodney A.', 1],
    ['Andres, Michael J. & Pulis, Eric E. & Curran, Stephen S.', 1],
    ['Blend, Charles K. & Dronen, Norman O.', 1],
    ['Bravo-Hollis, Margarita & Manter, Harold W.', 1],
    ['Hassanine, Reda M. E.', 2],
    ['Linton, E.', 2],
    ['Nagaty, H. F. & Abdel Aal, Tahia M.', 2],
    ['Pritchard, M. H.', 3],
    ['Sokolov, Sergey G. & Shchenkov, Sergei V. & Khasanov, Fuat K.', 3],
    ['Wang, P. - q.', 2],
    ['Wang, Yan-Yin & Wang, P. - q. & Zhang, Wen-Huah', 3],
    ['Woolcock, V.', 2],
    ['Yamaguti, S.', 4],
    ['Zdzitowiecki, Krzysztof', 2],
    ['Other (17)', 17]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=47)',
    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);