function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ayres, W. O.', 1],
    ['Cramer, F.', 1],
    ['Eigenmann, C. H. & Eigenmann, Rosa Smith', 4],
    ['Eigenmann, Rosa Smith', 1],
    ['Evermann, Barton Warren & Goldsborough, E. L.', 1],
    ['Gilbert, Charles H.', 1],
    ['Hubbs, Carl L. & Schultz, Leonard P.', 2],
    ['Jordan, David Starr', 1],
    ['Jordan, David Starr & Evermann, Barton Warren', 2],
    ['Jordan, David Starr & Metz, C. W.', 1],
    ['Jordan, David Starr & Snyder, John Otterbein', 2],
    ['Jordan, David Starr & Thompson, W. F.', 1],
    ['Phillipps, W. J.', 1],
    ['Rendahl, H.', 1],
    ['Schmidt, P. J.', 1],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=27)',
    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);