function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 7],
    ['Bennett, Edward Turner', 2],
    ['Bleeker, Pieter', 2],
    ['Brown, Judith & Beard, Annalea & Clingham, Elizabeth', 1],
    ['Böhlke, James E. & Briggs, Jack C.', 1],
    ['Day, F.', 1],
    ['Fowler, Henry Weed', 2],
    ['Fricke, Ronald & Allen, Gerald R. & Andréfouët, Serge', 1],
    ['Gaither, Michelle R. & Randall, John E.', 3],
    ['Gill, T. N.', 2],
    ['John E. Randall', 5],
    ['Love, Milton S. & Bizzarro, Joseph J. & Cornthwaite, Maria', 3],
    ['Randall, John Ernest Dr.', 6],
    ['Regan, C. T.', 2],
    ['Schultz, Leonard P.', 3],
    ['Other (13)', 13]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=54)',
    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);