function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Briggs, Thomas S. & Hom, Kevin', 1],
    ['Brignoli, Paolo M.', 2],
    ['Camilo, G. R. & Cokendolpher, James C.', 2],
    ['Chamberlin, Ralph V.', 1],
    ['Chamberlin, Ralph V. & Ivie, Wilton', 1],
    ['De Armas, Luis F.', 8],
    ['De Armas, Luis F. & Abud Antun, A. J.', 6],
    ['Gertsch, Willis J.', 3],
    ['Gravely, Frederic Henry', 9],
    ['Hansen, Hans Jacob & Sörensen, William', 4],
    ['Lawrence, Reginald Frederick', 15],
    ['Reddell, James R. & Cokendolpher, James C.', 3],
    ['Rowland, J. Mark', 17],
    ['Rowland, J. Mark & Reddell, James R.', 20],
    ['Rémy, P.', 3],
    ['Other (12)', 12]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=107)',
    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);