function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barbosa, Diego N. & Azevedo, Celso O.', 1],
    ['Bridwell, J. C. Mr.', 1],
    ['C. O & Madl, M. & Olmi, M.', 2],
    ['Can, İlyas', 1],
    ['Else, George R. & Bolton, Barry & Broad, Gavin R.', 6],
    ['Gadallah, Neveen S. & Azevedo, Celso O. & Brothers, Denis J.', 2],
    ['Ghahari, H. & Lim, J. & L, Bethylus & A, Botoryan', 1],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 2],
    ['Kieffer, Jean-Jacques A.', 1],
    ['Lim, Jongok & Lee, Jongwook & Koh, Sanghyun & Lee, Bongwoo', 21],
    ['Singh, Sudhir & Colombo, Wesley D. & Shreevihar, Santhosh', 11],
    ['Smith, Frederick', 1],
    ['Stein, Paulo R. W. & Alencar, Isabel D. C. C.', 3],
    ['Terayama, Mamoru', 2],
    ['Tribull, Carly Melissa', 9],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=65)',
    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);