function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahmad, J.', 1],
    ['Arabuli, Lela & Murvanidze, Lali & Faltynkova, Anna', 1],
    ['Bhalerao, G. D.', 2],
    ['Brenes, R. R. & Arroyo, G. & Munoz, G.', 1],
    ['Das, Sanjota N. & Ghazi, Rafia R.', 1],
    ['Denton, J. Fred', 1],
    ['Eduardo, Salcedo L. & Mannel, M. F. & Tongson, M. S.', 1],
    ['Faust, E. C.', 1],
    ['Fischthal, Jacob H. & Kuntz, Robert E', 1],
    ['Fischthal, Jacob H. & Thomas, J. D.', 1],
    ['Galliard, H. & Ngu, Dang-Van', 1],
    ['Hasegawa, H. & Asato, R.', 1],
    ['Heyneman, D. & Brenes, R. R. & Diaz-Ungria, C.', 1],
    ['Odening, K.', 2],
    ['Travassos, L.', 8],
    ['Other (26)', 26]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=50)',
    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);