function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amon, Diva J & Ziegler, Amanda F & Drazen, Jeffrey C', 2],
    ['Coelho, Petrônio Alves & Almeida, Alexandre Oliveira De', 1],
    ['Eschscholtz, Johann Friedrich von', 2],
    ['Fassbender, Nico & Stefanoudis, Paris V', 1],
    ['Ford, Michael & Bezio, Nicholas & Collin, Allen', 2],
    ['Gueroun, Sonia Km & Schäfer, Susanne & Gizzi, Francesca', 3],
    ['Kirkaldy, George Willis', 1],
    ['OLIVEIRA, OTTO M. P. & MIRANDA, THAÍS P. & ARAUJO, ENILMA M.', 16],
    ['Oliveira, Otto M. P. & Migotto, Alvaro E.', 1],
    ['O’Hara, James E. & Cerretti, Pierfilippo & Pape, Thomas', 1],
    ['Ruiz-Escobar, Fernando & Valadez-Vargas, Diana K.', 2],
    ['Thiel, Max Egon', 1],
    ['Yazici, Gülten & Yildirim, Erol & Moulet, Pierre', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=34)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);