function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boldrini, R.', 3],
    ['Boldrini, Rafael & Lima, Lucas Ramos Costa', 1],
    ['Costa, Sabrina Santos & Mariano, Rodolfo', 1],
    ['Costa, Vinicius & Almeida, Tais B. & Salles, Frederico F.', 2],
    ['Domínguez, Eduardo & Grillet, Maria-Eugenia & Nieto, Carolina', 3],
    ['Lima, Lucas R. C. & Raimundi, Erikcsen A. & Pinheiro, Ulisses', 1],
    ['Nascimento, Stênio Raniery de Sousa & Lima, Lucas Ramos Costa', 1],
    ['Neto, Jaime De Liege Gama & Hamada, Neusa', 1],
    ['Oliveira, Ian & Campos, Rogério & Calor, Adolfo R.', 1],
    ['Orlando, Thales Yann & Salles, Frederico Falcão', 2],
    ['Raimundi, Erikcsen A. & Cabette, Helena R. S.', 1],
    ['Raimundi, Erikcsen Augusto & Domínguez, Eduardo', 3],
    ['Rodrigues, Jackson A. O. & Nascimento, Stênio R. S.', 4],
    ['Takiya, Daniela Maeda & Santos, Allan Paulo Moreira', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=28)',
    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);