function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahmad, J.', 6],
    ['Aken’Ova, T. O. & Cribb, Thomas H.', 1],
    ['Bray, Rodney A.', 1],
    ['Crowcroft, Peter W.', 1],
    ['Ding, Xuejuan', 1],
    ['Dollfus, R. P.', 2],
    ['Dwivedi, M. P.', 1],
    ['Lim, C. H. & Kim, S. H.', 2],
    ['Manter, Harold W.', 2],
    ['Martin, W. E.', 3],
    ['Ozaki, Yoshimasa', 5],
    ['Park, James T.', 2],
    ['Pigulewsky, S. W.', 2],
    ['Wisniewski, L. W.', 2],
    ['Yamaguti, S.', 4],
    ['Other (11)', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=46)',
    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);