function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brooks, Daniel R.', 1],
    ['Campião, Karla Magalhães & Morais, Drausio Honorio', 2],
    ['Coil, William H. & Kuntz, Robert E', 1],
    ['Curran, Stephen S.', 2],
    ['Lunaschi, Lia I. & Álvarez, Victor Hugo Merlo', 1],
    ['Lunaschi, Lía I.', 1],
    ['Margarita Ostrowski de Núñez & Nathalia J. Arredondo', 4],
    ['Mueller, Justus F.', 1],
    ['Salgado-Maldonado, Guillermo & Cabanas-Carranza, Guillermina', 1],
    ['Teixeira de Freitas, J. F.', 2],
    ['Travassos, L. & Artigas, P. & Pereira, C.', 1],
    ['Vicente, J. J. & dos Santos, E. & de Souza, S. V.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=18)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);