function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barger, Michael A.', 1],
    ['Barnhart, M. Christopher & Powell, Edwin C.', 1],
    ['Choudhury, Anindo & Nelson, Patrick A.', 1],
    ['Christensen, Bruce M. & Wellner, Paul K. & Gleason, Larry N.', 2],
    ['Gale, Eric J. & Choudhury, Anindo & Bailey, Jennifer L.', 1],
    ['Krygier, B. Bruce & Macy, Ralph W.', 1],
    ['Magath, Thomas Byrd', 1],
    ['Self, J. Teague & Campbell, James Wayne', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=9)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);