function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Allison, F. R. & Climo, F.', 1],
    ['Baugh, S. C.', 1],
    ['Bhalerao, G. D.', 2],
    ['Byrd, Elon E.', 1],
    ['Dollfus, Robert Philippe', 1],
    ['Fernando, W.', 1],
    ['Fischthal, Jacob H. & Kuntz, Robert E', 1],
    ['Johnston, T. Harvey', 1],
    ['Kagei, N.', 1],
    ['Kossack, Wilhelm', 1],
    ['Malan, J. R.', 1],
    ['Mokhehle, C. N. C.', 1],
    ['Travassos, L.', 2],
    ['Tubangui, Marcos A.', 3],
    ['Wang, P. - q.', 2],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=23)',
    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);