function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Albornoz-Garzón, Juan G. & Conde-Saldaña, Cristhian C.', 1],
    ['Angulo, Arturo', 1],
    ['Batista-Silva, Valéria Flávia & Frota, Augusto', 1],
    ['Blanco, Daniel Rodrigues & Lui, Roberto Laridondo', 1],
    ['Ceríaco, Luis M. P. & Santos, Bruna S. & Semedo, Thiago B. F.', 1],
    ['Diniz, Paulo Baltazar & Siqueira, Hatus de Oliveira', 1],
    ['Mattox, George M. T. & Bifi, Alessandro G. & Oyakawa, Osvaldo T.', 1],
    ['Ota, Renata Rúbia & Deprá, Gabriel de Carvalho', 6],
    ['Oyakawa, Osvaldo T. & Mattox, George M. T.', 5],
    ['Reia, Lais & S. da Costa e Silva, Gabriel', 1],
    ['Smith, Welber Senteio & Halcsik, Leticia', 1],
    ['Sébastien Brosse & Fréderic Melki & Régis Vigouroux', 1],
    ['de Brito, Victor & Buckup, Paulo Andreas', 1],
    ['dos Santos, Sergio Alexandre & de Britto, Marcelo Ribeiro', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=23)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);