function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cable, Raymond M. & Nahhas, Fuad M.', 1],
    ['Cribb, Thomas H. & Bray, Rodney A. & Barker, Stephen C.', 1],
    ['Crowcroft, Peter W.', 1],
    ['Gu, Chang-dong & Shen, J. - w.', 3],
    ['Manter, Harold W.', 1],
    ['Shen, J. - w.', 3],
    ['Shimazu, Takeshi & Machida, Masaaki', 3],
    ['Sogandares-Bernal, F. & Hutton, Robert F.', 1],
    ['Yamaguti, S.', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=18)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);