function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bertaco, Vinicius A. & Azevedo, Marco A.', 2],
    ['Bichuette, Maria Elina & Trajano, Eleonora', 1],
    ['Campos-Paiva, Rafael M. & Costa, Wilson J. E. M.', 1],
    ['Castro, Íthalo Da Silva & Wosiacki, Wolmar Benjamin', 1],
    ['Datovo, Aléssio', 1],
    ['Datovo, Aléssio & Landim, Maria Isabel', 1],
    ['De Oliveira, Rianne C. & Ota, Renata R. & Deprá, Gabriel C.', 1],
    ['Donin, Laura M. & Pinna, Mário C. C. de & Severi, William', 1],
    ['Ferrer, Juliano & Donin, Laura M.', 1],
    ['Ferrer, Juliano & Donin, Laura M. & Malabarba, Luiz R.', 1],
    ['Langeani, Francisco', 1],
    ['Mendonça, Marina Barreira & Oyakawa, Osvaldo Takeshi', 1],
    ['Rafael M. Campos-Paiva & Wilson J. E. M. Costa', 2],
    ['Sarmento-Soares, Luisa M. & Martins-Pinheiro, Ronaldo F.', 1],
    ['Wolmar Benjamin Wosiacki', 9],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=28)',
    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);