function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Agarwal, S. M.', 1],
    ['Aguiar, Aline & Morais, Drausio Honorio', 1],
    ['Baer, J. G.', 1],
    ['Bhalerao, G. D.', 4],
    ['Braun, M.', 5],
    ['Cort, William W.', 1],
    ['Dubois, Georges', 3],
    ['Fischthal, Jacob H. & Thomas, J. D.', 1],
    ['Galli-Vallerio, B.', 1],
    ['Jaiswal, G. P.', 7],
    ['Leidy, Joseph', 2],
    ['Ortlepp, R. J.', 2],
    ['Pandey, K. C.', 2],
    ['Paredes-León, Ricardo & García-Prieto, Luis', 4],
    ['Tubangui, Marcos A.', 2],
    ['Other (22)', 22]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=59)',
    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);