function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bott, Nathan J. & Cribb, Thomas H.', 12],
    ['Bott, Nathan J. & Miller, Terrence L. & Cribb, Thomas H.', 8],
    ['Gu, Chang-dong & Shen, J. - w.', 13],
    ['Hopkins, Sewell H.', 6],
    ['Kohn, Anna', 8],
    ['Linton, E.', 6],
    ['Manter, Harold W.', 22],
    ['Nagaty, H. F.', 11],
    ['Ozaki, Yoshimasa', 7],
    ['Shen, J. - w.', 7],
    ['Srivastava, H. D.', 6],
    ['Velasquez, Carmen C.', 13],
    ['Verma, S. C.', 9],
    ['Wang, P. - q.', 18],
    ['Yamaguti, S.', 28],
    ['Other (140)', 253]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=427)',
    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);