function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahmad, J.', 2],
    ['Blend, Charles K. & Karar, Yasser F. M. & Dronen, Norman O.', 11],
    ['Cribb, Thomas H. & Bray, Rodney A.', 5],
    ['Fischthal, Jacob H. & Thomas, J. D.', 2],
    ['Hafeezullah, M.', 2],
    ['Hanson, Mary Louise', 2],
    ['León, Pérez-Ponce De & García-Magaña, Leticia', 2],
    ['Lopes, Daniela A. & Mainenti, Adriana & Knoff, Marcelo', 2],
    ['Lunaschi, Lia I. & Álvarez, Victor Hugo Merlo', 2],
    ['Manter, Harold W.', 7],
    ['Margarita Ostrowski de Núñez & Nathalia J. Arredondo', 6],
    ['Nagaty, H. F.', 2],
    ['Parukhin, A M', 2],
    ['Szidat, L.', 3],
    ['Yamaguti, S.', 4],
    ['Other (34)', 35]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=89)',
    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);