function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cable, Raymond M. & Nahhas, Fuad M.', 1],
    ['Coil, William H. & Reid, Willis A. & Kuntz, Robert E', 1],
    ['Cribb, Thomas H. & Bray, Rodney A. & Barker, Stephen C.', 2],
    ['Crowcroft, Peter W.', 1],
    ['Durio, Walter O. & Manter, Harold W.', 1],
    ['Gu, Chang-dong & Shen, J. - w.', 3],
    ['Hafeezullah, M.', 1],
    ['Liu, Sheng-fa', 1],
    ['Machida, Masaaki & Kuramochi, Toshiaki', 1],
    ['Mani, G. Gnana', 1],
    ['Manter, Harold W.', 3],
    ['Shen, J. - w.', 4],
    ['Shimazu, Takeshi & Machida, Masaaki', 3],
    ['Sogandares-Bernal, F. & Hutton, Robert F.', 1],
    ['Yamaguti, S.', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=29)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);